Merge branch 'master' into fix/agc-canvas-acceptance-batch

- 冲突解在 index.tsx 工具条动作区：两侧都要在同一位置插入按钮（WS1 的「生成任务」入口 +
  WS2 把「整理画布」从行尾移到「生成素材」之后），按「两侧语义都保住」解——
  「整理画布」在前（紧邻「生成素材」，满足其 previousElementSibling 断言与「不是行尾」断言），
  「生成任务」紧随其后，共用同一个闭合标签；行尾那份旧「整理画布」由 WS2 的删除 hunk 干净应用
- 已核对：ria-label="整理画布" 与 ria-label="生成任务" 在文件中各恰好一处
- 合并后实测：gc:typecheck 通过；resourceCanvasManualLayout 9 + appSurface 439 = 448 passed

apps/ai-game-creator-shell/scripts/check-config.mjs

@@ -113,6 +113,11 @@ const allowedUncalledTauriCommands = [
   'chat_with_game_creator_agent',
   'check_ui_editor_font_glyph_coverage',
   'create_ui_design_resource',
+  // 图片类生成的同步变体：GUI 已改为 `start_local_project_asset_generation` + 项目内任务账本
+  // （提交即返回、后台生成）。这条命令**没有生产调用方**，只有 Rust 集成测试
+  // （`src/tests/project.rs`）与 `commands.rs` 单测在调；待后续批次删除，或改为转调
+  // `start_local_project_asset_generation`。
+  'generate_local_project_asset',
   'open_game_creator_launcher_window',
   'open_game_creator_workspace_window',
   'read_direct_project_conversation',

apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server.rs

@@ -2829,8 +2829,6 @@ impl CodexAppServerConnection {
                             callback(&platform_llm::LlmStreamDelta {
                                 accumulated_text: streamed_text.clone(),
                                 delta_text: delta,
-                                accumulated_reasoning: String::new(),
-                                reasoning_delta: String::new(),
                                 finish_reason: None,
                             });
                         }
@@ -3135,7 +3133,6 @@ fn parse_game_creator_codex_app_server_text(
         } else {
             String::new()
         },
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id: Some(thread_id.to_string()),
         usage: None,

apps/ai-game-creator-shell/src-tauri/src/agent/codex_cli.rs

@@ -589,7 +589,6 @@ fn parse_game_creator_codex_cli_response(
         } else {
             String::new()
         },
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id,
         usage,

apps/ai-game-creator-shell/src-tauri/src/agent/design_runtime.rs

@@ -49,18 +49,6 @@ pub(crate) struct DesignView {
     messages: Vec<DesignMessage>,
     running: bool,
     can_retry: bool,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    reasoning_text: Option<String>,
-    reasoning_entries: Vec<DesignReasoningEntry>,
-}
-
-#[derive(Clone, Debug, Serialize)]
-#[serde(rename_all = "camelCase")]
-pub(crate) struct DesignReasoningEntry {
-    id: String,
-    text: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    message_id: Option<String>,
 }
 
 #[derive(Clone, Debug, Serialize)]
@@ -77,7 +65,6 @@ pub(crate) struct DesignEvent {
 }
 
 fn design_view(session: &DesignSession, running: bool) -> DesignView {
-    let reasoning_entries = persisted_design_reasoning_entries(session);
     DesignView {
         session: DesignSessionSummary {
             session_id: session.session_id.clone(),
@@ -95,124 +82,9 @@ fn design_view(session: &DesignSession, running: bool) -> DesignView {
             && session.turn.as_ref().is_some_and(|turn| turn.pending)
             && session.pending_approval.is_none()
             && session.pending_clarification.is_none(),
-        reasoning_text: reasoning_entries.last().map(|entry| entry.text.clone()),
-        reasoning_entries,
     }
 }
 
-fn reasoning_text_from_history_item(item: &Value) -> Option<String> {
-    if item.get("type").and_then(Value::as_str) != Some("reasoning") {
-        return None;
-    }
-    let mut text = String::new();
-    if let Some(summary) = item.get("summary").and_then(Value::as_array) {
-        for part in summary {
-            if let Some(value) = part.get("text").and_then(Value::as_str) {
-                text.push_str(value.trim());
-            }
-        }
-    }
-    if let Some(content) = item.get("content").and_then(Value::as_array) {
-        for part in content {
-            let part_type = part.get("type").and_then(Value::as_str).unwrap_or_default();
-            if matches!(
-                part_type,
-                "reasoning" | "reasoning_content" | "reasoning_text" | "analysis" | "thinking"
-            ) {
-                if let Some(value) = part.get("text").and_then(Value::as_str) {
-                    text.push_str(value.trim());
-                }
-            }
-        }
-    }
-    (!text.trim().is_empty()).then_some(text)
-}
-
-fn persisted_design_reasoning_entries(session: &DesignSession) -> Vec<DesignReasoningEntry> {
-    // Responses history contains tool-only provider responses. Their reasoning is
-    // followed by function calls and only the next provider response may contain
-    // visible assistant text, so pairing on the next `message` item makes the
-    // earlier reasoning look like an orphan and moves it to the bottom of the UI.
-    // Both persisted streams retain user-turn boundaries; pair reasoning and
-    // visible assistant messages by their response order within each turn.
-    let mut assistant_groups: Vec<Vec<String>> = vec![Vec::new()];
-    for message in &session.messages {
-        if message.role == "user" {
-            assistant_groups.push(Vec::new());
-        } else if message.role == "assistant" {
-            assistant_groups
-                .last_mut()
-                .expect("assistant group always exists")
-                .push(message.id.clone());
-        }
-    }
-    let mut entries = Vec::new();
-    let mut group_index = 0;
-    let mut assistant_index = 0;
-    let mut sequence = 0_u64;
-    let mut current_reasoning = Vec::new();
-    let mut pending_reasoning = Vec::new();
-    let mut saw_response_output = false;
-
-    for item in &session.history {
-        if item.get("role").and_then(Value::as_str) == Some("user") {
-            if !pending_reasoning.is_empty() || !current_reasoning.is_empty() {
-                pending_reasoning.append(&mut current_reasoning);
-            }
-            group_index += 1;
-            assistant_index = 0;
-            saw_response_output = false;
-            continue;
-        }
-        if item.get("type").and_then(Value::as_str) == Some("reasoning") {
-            if saw_response_output {
-                pending_reasoning.append(&mut current_reasoning);
-                saw_response_output = false;
-            }
-            if let Some(text) = reasoning_text_from_history_item(item) {
-                sequence += 1;
-                current_reasoning.push(DesignReasoningEntry {
-                    id: item
-                        .get("id")
-                        .and_then(Value::as_str)
-                        .map(str::to_string)
-                        .unwrap_or_else(|| format!("reasoning-{sequence}")),
-                    text,
-                    message_id: None,
-                });
-            }
-            continue;
-        }
-        if item.get("role").and_then(Value::as_str) == Some("assistant")
-            || item.get("type").and_then(Value::as_str) == Some("message")
-        {
-            pending_reasoning.extend(current_reasoning.drain(..));
-            let assistant_id = assistant_groups
-                .get(group_index)
-                .and_then(|ids| ids.get(assistant_index))
-                .cloned();
-            assistant_index += 1;
-            for mut entry in pending_reasoning.drain(..) {
-                entry.message_id = assistant_id.clone();
-                entries.push(entry);
-            }
-            saw_response_output = false;
-        } else if item.get("type").is_some() {
-            saw_response_output = true;
-        }
-    }
-    pending_reasoning.append(&mut current_reasoning);
-    let fallback_id = assistant_groups
-        .get(group_index)
-        .and_then(|ids| ids.last())
-        .cloned();
-    for mut entry in pending_reasoning {
-        entry.message_id = fallback_id.clone();
-        entries.push(entry);
-    }
-    entries
-}
-
 fn design_event(
     root: &Path,
     turn_id: &str,
@@ -232,17 +104,6 @@ fn design_event(
     }
 }
 
-fn design_reasoning_event(
-    root: &Path,
-    turn_id: &str,
-    id: Option<&str>,
-    reasoning: String,
-) -> DesignEvent {
-    let mut event = design_event(root, turn_id, "reasoning", id, None, None);
-    event.reasoning_text = Some(reasoning);
-    event
-}
-
 fn design_project_id(root: &Path) -> Result<String, String> {
     validate_project_root(root)?;
     Ok(read_existing_manifest_for_project(root)?.project_id)
@@ -601,7 +462,6 @@ fn build_design_request(
         .with_tool_choice(platform_llm::LlmToolChoice::Auto)
         .with_web_search(false);
     apply_game_creator_llm_reasoning_effort(request, llm)
-        .map(|request| request.with_reasoning_capture(true))
 }
 
 // 调试队列只接收副本，写盘慢或失败时丢弃，不参与会话恢复。
@@ -688,12 +548,6 @@ async fn request_design_provider(
             Some(String::new()),
             None,
         ));
-        emit(design_reasoning_event(
-            root,
-            &turn_id,
-            Some(&message_id),
-            String::new(),
-        ));
         let result = if llm.stream {
             let mut stream_sequence = 0_u64;
             client
@@ -711,30 +565,18 @@ async fn request_design_provider(
                             "model": llm.model,
                             "deltaChars": delta.delta_text.chars().count(),
                             "accumulatedChars": delta.accumulated_text.chars().count(),
-                            "reasoningDeltaChars": delta.reasoning_delta.chars().count(),
-                            "reasoningAccumulatedChars": delta.accumulated_reasoning.chars().count(),
                             "deltaText": delta.delta_text,
                             "finishReason": delta.finish_reason,
                         }),
                     );
-                    if !delta.delta_text.is_empty() || delta.finish_reason.is_some() {
-                        emit(design_event(
-                            root,
-                            &turn_id,
-                            "text",
-                            Some(&message_id),
-                            Some(delta.accumulated_text.clone()),
-                            None,
-                        ));
-                    }
-                    if !delta.reasoning_delta.is_empty() {
-                        emit(design_reasoning_event(
-                            root,
-                            &turn_id,
-                            Some(&message_id),
-                            delta.accumulated_reasoning.clone(),
-                        ));
-                    }
+                    emit(design_event(
+                        root,
+                        &turn_id,
+                        "text",
+                        Some(&message_id),
+                        Some(delta.accumulated_text.clone()),
+                        None,
+                    ));
                 })
                 .await
         } else {
@@ -742,14 +584,6 @@ async fn request_design_provider(
         };
         match result {
             Ok(response) => {
-                if !response.reasoning.is_empty() {
-                    emit(design_reasoning_event(
-                        root,
-                        &turn_id,
-                        Some(&message_id),
-                        response.reasoning.clone(),
-                    ));
-                }
                 design_debug(
                     root,
                     "response",
@@ -772,12 +606,6 @@ async fn request_design_provider(
                     || game_creator_agent_runtime_transient_provider_error_kind(&error, false)
                         .is_none()
                 {
-                    emit(design_reasoning_event(
-                        root,
-                        &turn_id,
-                        Some(&message_id),
-                        String::new(),
-                    ));
                     return Err(detail);
                 }
                 tokio::time::sleep(Duration::from_millis(
@@ -826,24 +654,8 @@ async fn request_scripted_design_provider(
             Some(String::new()),
             None,
         ));
-        emit(design_reasoning_event(
-            root,
-            &turn_id,
-            Some(&message_id),
-            String::new(),
-        ));
         match fake_provider::take() {
-            Some(Ok(response)) => {
-                if !response.reasoning.is_empty() {
-                    emit(design_reasoning_event(
-                        root,
-                        &turn_id,
-                        Some(&message_id),
-                        response.reasoning.clone(),
-                    ));
-                }
-                return Ok(response);
-            }
+            Some(Ok(response)) => return Ok(response),
             Some(Err(error)) => {
                 let detail = redact_agent_runtime_error(
                     root,
@@ -854,24 +666,10 @@ async fn request_scripted_design_provider(
                     || game_creator_agent_runtime_transient_provider_error_kind(&error, false)
                         .is_none()
                 {
-                    emit(design_reasoning_event(
-                        root,
-                        &turn_id,
-                        Some(&message_id),
-                        String::new(),
-                    ));
                     return Err(detail);
                 }
             }
-            None => {
-                emit(design_reasoning_event(
-                    root,
-                    &turn_id,
-                    Some(&message_id),
-                    String::new(),
-                ));
-                return Err("假 Provider 脚本耗尽".into());
-            }
+            None => return Err("假 Provider 脚本耗尽".into()),
         }
     }
     unreachable!()
@@ -1142,9 +940,7 @@ pub(crate) fn set_design_agent_runtime_mode(
         "design.runtime-mode",
     )?;
     if active_runtime.trim() == "game" {
-        if crate::assets::register_design_artifacts_at(root)? {
-            advance_agent_runtime_project_revision_locked(root)?;
-        }
+        crate::assets::register_design_artifacts_at(root)?;
     }
     write_design_runtime_mode(root, active_runtime.trim())
 }
@@ -1380,38 +1176,6 @@ mod tests {
         let error = ensure_design_runtime_active(root).expect_err("game mode must reject design");
         assert!(error.contains("游戏运行态"));
     }
-
-    #[test]
-    fn switching_to_game_pairs_design_artifact_registration_with_revision() {
-        let temporary = tempfile::tempdir().expect("create runtime mode root");
-        let root = temporary.path();
-        crate::project::init_local_game_project_at(root, "design-switch-test", "策划切换")
-            .expect("init project");
-        fs::create_dir_all(root.join("design_artifacts/project")).expect("create artifacts");
-        fs::write(root.join("design_artifacts/project/design.md"), "设计内容")
-            .expect("write artifact");
-
-        let before = read_game_creator_agent_runtime_project_revision(root)
-            .expect("read initial revision")
-            .revision;
-        assert_eq!(
-            set_design_agent_runtime_mode(root.to_string_lossy().into_owned(), "game".to_string(),)
-                .expect("switch to game")
-                .active_runtime,
-            "game"
-        );
-        let after = read_game_creator_agent_runtime_project_revision(root)
-            .expect("read committed revision")
-            .revision;
-        assert_eq!(after, before + 1);
-
-        set_design_agent_runtime_mode(root.to_string_lossy().into_owned(), "game".to_string())
-            .expect("repeat switch to game");
-        let repeated = read_game_creator_agent_runtime_project_revision(root)
-            .expect("read repeated revision")
-            .revision;
-        assert_eq!(repeated, after);
-    }
     use serde_json::json;
     use std::fs;
 
@@ -1521,7 +1285,6 @@ mod tests {
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: "fake-design".into(),
             text: text.into(),
-            reasoning: String::new(),
             finish_reason: Some(if calls.is_empty() {
                 "stop".into()
             } else {
@@ -1582,110 +1345,6 @@ mod tests {
             .clone()
     }
 
-    #[test]
-    fn design_request_enables_reasoning_capture_only_for_design_runtime() {
-        let session = new_design_session("project", "quality");
-        let request = build_design_request(&session, &pack(), &GameCreatorLlmConfig::default())
-            .expect("design request");
-        assert!(request.capture_reasoning);
-    }
-
-    #[test]
-    fn persisted_reasoning_follows_response_order_across_tool_only_responses() {
-        let mut session = new_design_session("project", "quality");
-        session.messages = vec![
-            DesignMessage {
-                id: "turn:user".into(),
-                role: "user".into(),
-                text: "需求".into(),
-            },
-            DesignMessage {
-                id: "call-1:tool".into(),
-                role: "tool".into(),
-                text: "读取资源".into(),
-            },
-            DesignMessage {
-                id: "turn:response:0".into(),
-                role: "assistant".into(),
-                text: "给出方案".into(),
-            },
-        ];
-        session.history = vec![
-            json!({"role":"user", "content":"需求"}),
-            json!({"type":"reasoning", "id":"r1", "content":[{"type":"reasoning_text", "text":"第一段思考"}]}),
-            json!({"type":"function_call", "call_id":"call-1", "name":"read_resource", "arguments":"{}"}),
-            json!({"type":"reasoning", "id":"r2", "content":[{"type":"reasoning_text", "text":"第二段思考"}]}),
-            json!({"type":"message", "role":"assistant", "content":[{"type":"output_text", "text":"给出方案"}]}),
-        ];
-
-        let entries = persisted_design_reasoning_entries(&session);
-        assert_eq!(
-            entries
-                .iter()
-                .map(|entry| (entry.id.as_str(), entry.message_id.as_deref()))
-                .collect::<Vec<_>>(),
-            vec![
-                ("r1", Some("turn:response:0")),
-                ("r2", Some("turn:response:0")),
-            ]
-        );
-    }
-
-    #[tokio::test(flavor = "current_thread")]
-    async fn scripted_design_provider_emits_reasoning_without_persisting_it() {
-        let (_temp, root, _resources) = init_design_project();
-        let mut session = new_design_session("design-fake", "quality");
-        begin_design_turn(&mut session, "turn-reasoning");
-        let mut response = fake_response("reasoning", "正文", Vec::new());
-        response.reasoning = "先分析需求，再组织方案。".into();
-        let _fake = fake_provider::install(vec![Ok(response)], 0);
-        let mut events = Vec::new();
-        let response =
-            request_scripted_design_provider(&root, &mut session, &mut |event| events.push(event))
-                .await
-                .expect("scripted provider");
-
-        let reasoning_events = events
-            .iter()
-            .filter_map(|event| event.reasoning_text.as_deref())
-            .collect::<Vec<_>>();
-        assert_eq!(reasoning_events, vec!["", "先分析需求，再组织方案。"]);
-        assert_eq!(response.text, "正文");
-        assert!(session.history.is_empty());
-    }
-
-    #[tokio::test(flavor = "current_thread")]
-    async fn scripted_design_provider_retry_clears_previous_reasoning_attempt() {
-        let (_temp, root, _resources) = init_design_project();
-        let mut session = new_design_session("design-fake", "quality");
-        begin_design_turn(&mut session, "turn-reasoning-retry");
-        let mut response = fake_response("reasoning-retry", "重试后的正文", Vec::new());
-        response.reasoning = "重试后的推理".into();
-        let _fake = fake_provider::install(
-            vec![
-                Err(platform_llm::LlmError::Upstream {
-                    status_code: 503,
-                    message: "busy".into(),
-                }),
-                Ok(response),
-            ],
-            1,
-        );
-        let mut events = Vec::new();
-        let response =
-            request_scripted_design_provider(&root, &mut session, &mut |event| events.push(event))
-                .await
-                .expect("scripted retry provider");
-
-        let reasoning_events = events
-            .iter()
-            .filter_map(|event| event.reasoning_text.as_deref())
-            .collect::<Vec<_>>();
-        assert_eq!(reasoning_events, vec!["", "", "重试后的推理"]);
-        assert_eq!(response.text, "重试后的正文");
-        assert!(session.history.is_empty());
-    }
-
     #[tokio::test(flavor = "current_thread")]
     async fn fake_provider_walks_five_phases_and_enters_consultant() {
         let (_temp, root, resources) = init_design_project();

apps/ai-game-creator-shell/src-tauri/src/agent/generation/external_generation_state.rs

@@ -1074,6 +1074,102 @@ pub(in crate::agent) fn remove_platform_art_generation_runtime_state_at(
     }
 }
 
+/// 一次性兼容：升级前 standalone 槽身份只由 `{outputPath, requireSlices}` 派生，
+/// 同一项目所有图片类生成共用一个槽；升级后槽身份按精确动作派生，路径随之变化。
+///
+/// 若旧槽路径上的账本仍然属于本次精确动作（`agentId` 与 `actionFingerprint` 都与
+/// 当前上下文一致），就在项目写锁内把它迁移到新身份路径：保留原 `idempotencyKey`
+/// 与 `operationId`，避免同一精确动作在升级后二次 POST 计费。旧账本属于其他动作时
+/// 原样保留（不迁移、不删除、不阻塞），由对应动作自己的请求迁移。
+///
+/// 返回 `Ok(false)` 表示没有需要迁移的旧账本。任何身份无法安全解释的情形都失败关闭。
+pub(super) fn adopt_legacy_standalone_platform_art_generation_runtime_state_at(
+    root: &Path,
+    context: &PlatformArtGenerationRuntimeContext,
+    legacy_run_id: &str,
+) -> Result<bool, String> {
+    if !is_standalone_platform_art_generation_runtime_context(context)
+        || legacy_run_id == context.run_id
+        || !is_lowercase_sha256(legacy_run_id.strip_prefix("slot-").unwrap_or_default())
+    {
+        return Ok(false);
+    }
+    // 与账本创建互斥：迁移必须在同一把项目写锁内完成，否则两个调用可能同时把同一份
+    // 旧账本迁移到新路径，或与新建账本互相覆盖。
+    let _claim_lock = acquire_game_creator_agent_runtime_project_write_lock_with_wait(
+        root,
+        "canvas.asset_generate.runtime.claim",
+    )?;
+    if game_creator_agent_runtime_external_generation_exists(
+        root,
+        &context.agent_id,
+        &context.run_id,
+    ) {
+        // 新身份账本已经存在：旧账本不属于本次动作的权威状态，保持两边各自的身份。
+        return Ok(false);
+    }
+    let legacy_relative_path =
+        platform_art_generation_runtime_relative_path(&context.agent_id, legacy_run_id);
+    let Some(legacy_state) =
+        read_agent_runtime_json_sidecar_with_max_bytes::<PlatformArtGenerationRuntimeState>(
+            root,
+            &legacy_relative_path,
+            "External Editor 生成账本",
+            PLATFORM_ART_GENERATION_RUNTIME_MAX_BYTES,
+        )?
+    else {
+        return Ok(false);
+    };
+    if legacy_state.agent_id != context.agent_id
+        || legacy_state.run_id != legacy_run_id
+        || legacy_state.action_fingerprint != context.action_fingerprint
+    {
+        // 旧槽里是另一个精确动作的账本：它仍归那个动作所有，本次调用不得消费、改写或删除它。
+        return Ok(false);
+    }
+    let legacy_identity = format!("{}:{legacy_run_id}", context.agent_id);
+    let legacy_context = PlatformArtGenerationRuntimeContext {
+        task_id: legacy_identity.clone(),
+        session_id: legacy_identity.clone(),
+        run_id: legacy_run_id.to_string(),
+        action_id: legacy_identity,
+        ..context.clone()
+    };
+    let Some(mut migrated) = read_platform_art_generation_runtime_state(root, &legacy_context)?
+    else {
+        return Ok(false);
+    };
+    migrated.run_id = context.run_id.clone();
+    migrated.task_id = context.task_id.clone();
+    migrated.session_id = context.session_id.clone();
+    migrated.action_id = context.action_id.clone();
+    migrated.updated_at = unix_timestamp();
+    write_platform_art_generation_runtime_state(root, &migrated)?;
+    remove_platform_art_generation_runtime_state_at(root, &context.agent_id, legacy_run_id)?;
+    Ok(true)
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_operation_id_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> Option<&str> {
+    state.operation_id.as_deref()
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_run_id_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> &str {
+    &state.run_id
+}
+
+#[cfg(test)]
+pub(super) fn platform_art_generation_runtime_action_fingerprint_for_test(
+    state: &PlatformArtGenerationRuntimeState,
+) -> &str {
+    &state.action_fingerprint
+}
+
 #[cfg(test)]
 pub(crate) fn write_platform_art_generation_runtime_accepted_for_test(
     root: &Path,

apps/ai-game-creator-shell/src-tauri/src/agent/interaction.rs

@@ -409,8 +409,6 @@ where
             (self.on_delta)(&platform_llm::LlmStreamDelta {
                 accumulated_text,
                 delta_text,
-                accumulated_reasoning: String::new(),
-                reasoning_delta: String::new(),
                 finish_reason,
             });
         }
@@ -501,7 +499,6 @@ mod tests {
             provider: LlmProvider::OpenAiCompatible,
             model: "interaction-test".to_string(),
             text: text.to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: Some("interaction-response".to_string()),
             usage: None,

apps/ai-game-creator-shell/src-tauri/src/agent/runtime_actions/response_stream_tests.rs

@@ -115,7 +115,6 @@ fn persist_tool_plan_handoff_repair_chain(
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: llm.model.clone(),
         text: text.to_string(),
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id: None,
         usage: None,
@@ -147,8 +146,6 @@ fn stream_delta(delta_text: &str, accumulated_text: &str) -> platform_llm::LlmSt
     platform_llm::LlmStreamDelta {
         accumulated_text: accumulated_text.to_string(),
         delta_text: delta_text.to_string(),
-        accumulated_reasoning: String::new(),
-        reasoning_delta: String::new(),
         finish_reason: None,
     }
 }
@@ -1006,7 +1003,6 @@ async fn provider_handoff_identity_drift_closes_lifecycle_without_leaking_respon
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: old_llm.model.clone(),
             text: private_response.to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: None,
             usage: None,
@@ -1120,7 +1116,6 @@ async fn tool_plan_handoff_identity_drift_closes_entire_repair_chain_before_remo
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: old_llm.model.clone(),
         text: text.to_string(),
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id: None,
         usage: None,
@@ -1307,7 +1302,6 @@ async fn tool_plan_capacity_gate_runs_before_provider_lifecycle_and_network() {
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: llm.model.clone(),
             text: format!("capacity response {loop_iteration}"),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: None,
             usage: None,
@@ -1442,7 +1436,6 @@ async fn tool_plan_handoff_durable_control_closes_entire_repair_chain_before_rem
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: llm.model.clone(),
         text: text.to_string(),
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id: None,
         usage: None,
@@ -1559,7 +1552,6 @@ fn provider_recovery_cleanup_closes_tool_plan_lifecycle_before_removing_handoff(
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: llm.model.clone(),
             text: "cleanup handoff".to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: None,
             usage: None,
@@ -1631,7 +1623,6 @@ fn runtime_resume_scans_and_cleans_terminal_tool_plan_handoff() {
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: llm.model.clone(),
             text: "terminal handoff".to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: None,
             usage: None,
@@ -1727,7 +1718,6 @@ async fn provider_handoff_retry_conflict_preserves_both_sidecars_for_reconciliat
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: llm.model.clone(),
             text: "已成功但尚未消费的回复".to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: None,
             usage: None,

apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/provider_control.rs

@@ -798,7 +798,6 @@ mod provider_reconciliation_diagnostic_tests {
         let response = platform_llm::LlmRunResponse {
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: "test-model".to_string(),
-            reasoning: String::new(),
             text: "C:\\private\\response".to_string(),
             finish_reason: Some("completed".to_string()),
             response_id: Some("response-1".to_string()),

apps/ai-game-creator-shell/src-tauri/src/assets.rs

@@ -604,10 +604,10 @@ pub(crate) fn register_local_asset_at(
     register_local_asset_entry(root, local_path, kind, media_type, id_prefix, source)
 }
 
-pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<bool, String> {
+pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<usize, String> {
     let design_root = root.join("design_artifacts");
     if !design_root.exists() {
-        return Ok(false);
+        return Ok(0);
     }
     let mut files = Vec::new();
     let mut directories = vec![design_root];
@@ -630,7 +630,7 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<bool, String>
         }
     }
     files.sort();
-    let mut changed = false;
+    let mut registered = 0;
     for path in files {
         let relative = path
             .strip_prefix(root)
@@ -644,7 +644,7 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<bool, String>
             Some("yaml" | "yml") => "text/yaml",
             _ => "application/octet-stream",
         };
-        let (_, asset_changed) = register_local_asset_entry_with_change(
+        register_local_asset_at(
             root,
             &relative,
             "document",
@@ -663,9 +663,9 @@ pub(crate) fn register_design_artifacts_at(root: &Path) -> Result<bool, String>
                 reference_resource_ids: Vec::new(),
             },
         )?;
-        changed |= asset_changed;
+        registered += 1;
     }
-    Ok(changed)
+    Ok(registered)
 }
 
 pub(crate) fn import_canvas_asset_at(
@@ -1876,18 +1876,6 @@ pub(crate) fn register_local_asset_entry(
     id_prefix: &str,
     source: GameCreationAppAssetSource,
 ) -> Result<UploadLocalAssetResult, String> {
-    register_local_asset_entry_with_change(root, local_path, kind, media_type, id_prefix, source)
-        .map(|(result, _)| result)
-}
-
-fn register_local_asset_entry_with_change(
-    root: &Path,
-    local_path: &str,
-    kind: &str,
-    media_type: &str,
-    id_prefix: &str,
-    source: GameCreationAppAssetSource,
-) -> Result<(UploadLocalAssetResult, bool), String> {
     let normalized_path = normalize_relative_path(local_path)?;
     let absolute_path = resolve_local_project_path(root, &normalized_path)?;
     let manifest_path = root.join(".agent/manifest.json");
@@ -1900,7 +1888,7 @@ fn register_local_asset_entry_with_change(
     let mut source_for_record = source.clone();
     source_for_record.prompt = None;
 
-    let (id, record_type, changed) = mutate_manifest_at(root, |manifest| {
+    let (id, record_type) = mutate_manifest_at(root, |manifest| {
         if let Some(existing) = manifest
             .assets
             .iter_mut()
@@ -1910,16 +1898,13 @@ fn register_local_asset_entry_with_change(
             // 而陈旧的非 unclassified 值会被读侧无条件信任（自愈只在落盘值是 unclassified
             // 时才触发），于是这个资产永远停在错误栏目。
             // kind 没变时刻意不动 category——落盘分类是权威值，同 kind 重登记不得抹掉它。
-            let changed = existing.kind != kind
-                || existing.media_type != media_type
-                || existing.source != source;
             if existing.kind != kind {
                 existing.kind = kind.to_string();
                 existing.category = game_creation_app_asset_category_for_kind(kind);
             }
             existing.media_type = media_type.to_string();
             existing.source = source;
-            Ok((existing.id.clone(), "asset.update", changed))
+            Ok((existing.id.clone(), "asset.update"))
         } else {
             let id = format!(
                 "{id_prefix}-{}-{}",
@@ -1937,7 +1922,7 @@ fn register_local_asset_entry_with_change(
                 tags: Vec::new(),
                 source,
             });
-            Ok((id, "asset.register", true))
+            Ok((id, "asset.register"))
         }
     })?;
     append_agent_db_record(
@@ -1952,15 +1937,12 @@ fn register_local_asset_entry_with_change(
         }),
     )?;
 
-    Ok((
-        UploadLocalAssetResult {
-            id,
-            local_path: normalized_path.clone(),
-            absolute_path: absolute_path.to_string_lossy().into_owned(),
-            manifest_path: manifest_path.to_string_lossy().into_owned(),
-        },
-        changed,
-    ))
+    Ok(UploadLocalAssetResult {
+        id,
+        local_path: normalized_path.clone(),
+        absolute_path: absolute_path.to_string_lossy().into_owned(),
+        manifest_path: manifest_path.to_string_lossy().into_owned(),
+    })
 }
 
 #[derive(Clone, Debug, Deserialize)]
@@ -2155,27 +2137,6 @@ mod tests {
     use super::*;
     use std::io::{Read, Write};
 
-    #[test]
-    fn design_artifact_registration_reports_only_real_manifest_changes() {
-        let temporary = tempfile::tempdir().expect("tempdir");
-        let root = temporary.path();
-        crate::project::init_local_game_project_at(root, "design-artifact-test", "策划产物登记")
-            .expect("init project");
-        fs::create_dir_all(root.join("design_artifacts/project")).expect("create artifacts");
-        fs::write(root.join("design_artifacts/project/design.md"), "设计内容")
-            .expect("write artifact");
-
-        assert!(register_design_artifacts_at(root).expect("register first time"));
-        assert_eq!(
-            read_existing_manifest_for_project(root)
-                .unwrap()
-                .assets
-                .len(),
-            1
-        );
-        assert!(!register_design_artifacts_at(root).expect("register idempotently"));
-    }
-
     /// 画板导出推断出的 kind 必须已经是 canonical 值。
     ///
     /// 这个值会被原样写进 manifest 并据以派生落盘 `category`；一旦写出非 canonical 值

apps/ai-game-creator-shell/src-tauri/src/commands.rs

@@ -517,7 +517,11 @@ pub(crate) fn create_automatic_local_game_project_at(
         match fs::create_dir(&project_root) {
             Ok(()) => {
                 let result = (|| {
-                    harden_new_game_creator_private_path(&project_root, true, "自动项目目录")?;
+                    prepare_game_creator_private_path_for_read(
+                        &project_root,
+                        true,
+                        "自动项目目录",
+                    )?;
                     enforce_project_permission_policy(&project_root, "project.create")?;
                     let _lock = acquire_project_write_lock(&project_root, "project.create")?;
                     init_local_game_project_at(

apps/ai-game-creator-shell/src-tauri/src/config.rs

@@ -1299,12 +1299,15 @@ pub(crate) fn ensure_game_creator_private_directory_tree(
                 #[cfg(all(windows, test))]
                 initialize_windows_game_creator_directory_owner_for_current_user(&directory)?;
                 #[cfg(windows)]
-                // This invocation created the directory, so initialize its
-                // owner/DACL in-process.  Marker-based managed-path detection
-                // must not route a newly-created descendant into UAC.
-                secure_windows_game_creator_path_for_current_user_with_owner_policy(
-                    &directory, true, true, true,
-                )?;
+                if game_creator_private_path_allows_auto_elevation(&directory) {
+                    secure_windows_game_creator_path_for_current_user_with_auto_elevation(
+                        &directory, true, true,
+                    )?;
+                } else {
+                    secure_windows_game_creator_path_for_current_user_with_owner_policy(
+                        &directory, true, true, true,
+                    )?;
+                }
                 #[cfg(unix)]
                 {
                     use std::os::unix::fs::PermissionsExt;
@@ -1343,11 +1346,15 @@ pub(crate) fn ensure_game_creator_private_directory_tree(
                 fs::create_dir(&directory).map_err(|retry_error| {
                     format!("创建 {label} 失败：{}: {retry_error}", directory.display())
                 })?;
-                // The retry also created this directory in the current
-                // process; keep it on the local hardening path.
-                secure_windows_game_creator_path_for_current_user_with_owner_policy(
-                    &directory, true, true, true,
-                )?;
+                if game_creator_private_path_allows_auto_elevation(&directory) {
+                    secure_windows_game_creator_path_for_current_user_with_auto_elevation(
+                        &directory, true, true,
+                    )?;
+                } else {
+                    secure_windows_game_creator_path_for_current_user_with_owner_policy(
+                        &directory, true, true, true,
+                    )?;
+                }
             }
             Err(error) => {
                 return Err(format!(

apps/ai-game-creator-shell/src-tauri/src/context_compaction.rs

@@ -905,7 +905,6 @@ mod tests {
             provider: platform_llm::LlmProvider::OpenAiCompatible,
             model: "context-compaction-test".to_string(),
             text: summary.into(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: Some("context-compaction-response".to_string()),
             usage: Some(platform_llm::LlmTokenUsage {

apps/ai-game-creator-shell/src-tauri/src/image_inspect.rs

@@ -26,6 +26,12 @@ pub(crate) struct LocalProjectImagePreview {
     pub(crate) byte_len: u64,
     pub(crate) pixel_width: u32,
     pub(crate) pixel_height: u32,
+    /// 这张图是否**真的**带 alpha 通道，判据见 [`detect_raster_image_has_alpha`]。
+    ///
+    /// 资源卡只按它决定要不要铺棋盘格底：`data-preview-kind` 只说明「走图片预览分支」，
+    /// 与这张图有没有透明像素无关 —— 无条件铺底会让「AI 把棋盘格画进像素里」的不透明图
+    /// 与卡面棋盘格叠成两套，验收时无法区分「真透明底」与「假棋盘格」。
+    pub(crate) has_alpha: bool,
     pub(crate) data_url: String,
 }
 
@@ -102,12 +108,17 @@ pub(crate) fn load_local_project_image_preview_with_cancellation(
         false,
     )?;
     cancellation.check()?;
+    // 头部级 alpha 判据：只读签名与头部标志（PNG 还会按 chunk 头跳过数据体找 `tRNS`），
+    // 不做熵解码、不做逐像素扫描，成本不随像素数增长，因此大图与「AI 把棋盘格画进图里」
+    // 的不透明图都不会因此变慢。
+    let has_alpha = detect_raster_image_has_alpha(&image.bytes, image.media_type);
     Ok(LocalProjectImagePreview {
         path: image.relative_path.clone(),
         media_type: image.media_type.to_string(),
         byte_len: image.byte_len,
         pixel_width: image.pixel_width,
         pixel_height: image.pixel_height,
+        has_alpha,
         data_url: image.data_url_with_cancellation(cancellation)?,
     })
 }
@@ -420,6 +431,84 @@ fn detect_raster_image_dimensions(bytes: &[u8], media_type: &str) -> Option<(u32
     }
 }
 
+/// 头部级 alpha 判据：这张图**有没有 alpha 通道 / 透明像素**，只看签名与头部标志
+/// （PNG 还会按 chunk 头跳过数据体找 `tRNS`）。
+///
+/// 为什么必须是头部级而不是像素级：资源卡预览按 8 MiB / 8192 边长 / 3270 万像素上限读取，
+/// 逐像素扫描意味着对每张卡都做一次全量 RGBA 解码（真机单栏 51 张、单张均值 591 KB），
+/// 成本与「卡面装饰底」的收益完全不成比例；而 alpha 是否存在在容器头部就是确定信息。
+///
+/// 判据（保守方向一致：判不出就当作不透明，宁可不铺棋盘格）：
+/// - PNG：颜色类型 4（灰度 + alpha）/ 6（真彩 + alpha）；0 / 2 / 3 本身没有 alpha 通道，
+///   但可以用 `tRNS` 声明透明色，因此还要在第一个 `IDAT` 之前找一次 `tRNS`；
+/// - WebP：扩展格式 `VP8X` 的 flags 第 4 位、无损 `VP8L` 位流头的 `alpha_is_used` 位；
+///   简单有损 `VP8 ` 不带 alpha 通道（带 alpha 的有损 WebP 一定走 `VP8X` + `ALPH`）；
+/// - JPEG：没有 alpha 通道，恒不透明（也绝不为了判 alpha 去扫它的段）。
+fn detect_raster_image_has_alpha(bytes: &[u8], media_type: &str) -> bool {
+    match media_type {
+        "image/png" => detect_png_has_alpha(bytes),
+        "image/webp" => detect_webp_has_alpha(bytes),
+        _ => false,
+    }
+}
+
+fn detect_png_has_alpha(bytes: &[u8]) -> bool {
+    // 签名 8 字节 + IHDR 长度 4 + "IHDR" 4 + 宽 4 + 高 4 + 位深 1 + 颜色类型 1 = 26。
+    if bytes.len() < 26 || &bytes[12..16] != b"IHDR" {
+        return false;
+    }
+    if matches!(bytes[25], 4 | 6) {
+        return true;
+    }
+    png_has_transparency_chunk(bytes)
+}
+
+/// 按 chunk 头前进并查找 `tRNS`：只读 8 字节 chunk 头并按长度跳过数据体，不做 zlib 解压。
+fn png_has_transparency_chunk(bytes: &[u8]) -> bool {
+    let mut offset = 8usize;
+    loop {
+        let Some(header_end) = offset.checked_add(8) else {
+            return false;
+        };
+        if header_end > bytes.len() {
+            return false;
+        }
+        let chunk_type = &bytes[offset + 4..header_end];
+        // `tRNS` 必须出现在第一个 `IDAT` 之前；碰到 `IDAT` / `IEND` 就没有再往下扫的意义。
+        if chunk_type == b"tRNS" {
+            return true;
+        }
+        if chunk_type == b"IDAT" || chunk_type == b"IEND" {
+            return false;
+        }
+        let chunk_len =
+            u32::from_be_bytes(bytes[offset..offset + 4].try_into().unwrap_or([0_u8; 4])) as usize;
+        let Some(next) = header_end
+            .checked_add(chunk_len)
+            .and_then(|value| value.checked_add(4))
+        else {
+            return false;
+        };
+        if next <= offset || next > bytes.len() {
+            return false;
+        }
+        offset = next;
+    }
+}
+
+fn detect_webp_has_alpha(bytes: &[u8]) -> bool {
+    if bytes.len() < 16 || &bytes[..4] != b"RIFF" || &bytes[8..12] != b"WEBP" {
+        return false;
+    }
+    match &bytes[12..16] {
+        // `VP8X` 的 flags 第 4 位（0x10）就是 alpha 标志（第 20 字节）。
+        b"VP8X" => bytes.get(20).is_some_and(|flags| flags & 0x10 != 0),
+        // `VP8L` 位流头第 28 位是 `alpha_is_used`，落在第 25 个字节（下标 24）的 0x10 位。
+        b"VP8L" => bytes.len() >= 25 && bytes[24] & 0x10 != 0,
+        _ => false,
+    }
+}
+
 #[derive(Clone, Copy)]
 enum TiffByteOrder {
     LittleEndian,
@@ -745,6 +834,74 @@ mod tests {
             .expect("valid 1x1 png")
     }
 
+    /// PNG 的「签名 + IHDR」头。判据只读这一段的位深 / 颜色类型，因此后续 chunk 由用例自行拼。
+    fn png_header(color_type: u8) -> Vec<u8> {
+        png_header_with_size(color_type, 1, 1)
+    }
+
+    fn png_header_with_size(color_type: u8, width: u32, height: u32) -> Vec<u8> {
+        let mut bytes = b"\x89PNG\r\n\x1a\n".to_vec();
+        let mut ihdr = Vec::new();
+        ihdr.extend_from_slice(&width.to_be_bytes());
+        ihdr.extend_from_slice(&height.to_be_bytes());
+        ihdr.push(8);
+        ihdr.push(color_type);
+        ihdr.extend_from_slice(&[0, 0, 0]);
+        push_png_chunk(&mut bytes, b"IHDR", &ihdr);
+        bytes
+    }
+
+    /// 追加一个结构合法（长度、类型、CRC 位置正确）但数据体可以是任意字节的 PNG chunk。
+    /// alpha 判据不消费 CRC，因此这里填零；正因数据体不必是合法 deflate 流，它同时能证明
+    /// 判据没有解码像素。
+    fn push_png_chunk(bytes: &mut Vec<u8>, kind: &[u8; 4], data: &[u8]) {
+        bytes.extend_from_slice(
+            &u32::try_from(data.len())
+                .expect("chunk length")
+                .to_be_bytes(),
+        );
+        bytes.extend_from_slice(kind);
+        bytes.extend_from_slice(data);
+        bytes.extend_from_slice(&[0, 0, 0, 0]);
+    }
+
+    /// 扩展格式 WebP（`VP8X`）：`flags` 第 4 位（0x10）是 alpha 标志。
+    fn webp_vp8x(flags: u8) -> Vec<u8> {
+        let mut bytes = b"RIFF".to_vec();
+        bytes.extend_from_slice(&0_u32.to_le_bytes());
+        bytes.extend_from_slice(b"WEBP");
+        bytes.extend_from_slice(b"VP8X");
+        bytes.extend_from_slice(&10_u32.to_le_bytes());
+        bytes.push(flags);
+        bytes.extend_from_slice(&[0, 0, 0]);
+        bytes.extend_from_slice(&[0, 0, 0]);
+        bytes.extend_from_slice(&[0, 0, 0]);
+        bytes
+    }
+
+    /// 无损 WebP（`VP8L`）：位流头第 28 位是 `alpha_is_used`，落在下标 24 的 0x10 位。
+    fn webp_vp8l(has_alpha: bool) -> Vec<u8> {
+        let mut bytes = b"RIFF".to_vec();
+        bytes.extend_from_slice(&0_u32.to_le_bytes());
+        bytes.extend_from_slice(b"WEBP");
+        bytes.extend_from_slice(b"VP8L");
+        bytes.extend_from_slice(&5_u32.to_le_bytes());
+        bytes.push(0x2f);
+        bytes.extend_from_slice(&[0, 0, 0, if has_alpha { 0x10 } else { 0 }]);
+        bytes
+    }
+
+    /// 简单有损 WebP（`VP8 `）：容器上没有 alpha 通道；带 alpha 的有损 WebP 一定走
+    /// `VP8X` 扩展格式（+ `ALPH` chunk）。
+    fn webp_vp8_simple() -> Vec<u8> {
+        let mut bytes = b"RIFF".to_vec();
+        bytes.extend_from_slice(&0_u32.to_le_bytes());
+        bytes.extend_from_slice(b"WEBP");
+        bytes.extend_from_slice(b"VP8 ");
+        bytes.extend_from_slice(&0_u32.to_le_bytes());
+        bytes
+    }
+
     fn jpeg_bytes(width: u16, height: u16, app1_payload: Option<&[u8]>) -> Vec<u8> {
         let mut bytes = vec![0xff, 0xd8];
         if let Some(payload) = app1_payload {
@@ -840,6 +997,138 @@ mod tests {
         assert_eq!(preview.media_type, "image/png");
         assert_eq!(preview.byte_len, png_bytes().len() as u64);
         assert!(preview.data_url.starts_with("data:image/png;base64,"));
+        // 这份 fixture 是 PNG colorType 4（灰度 + alpha），因此预览必须报「有 alpha」——
+        // 资源卡据此才铺棋盘格底。
+        assert!(preview.has_alpha);
+    }
+
+    #[test]
+    fn png_alpha_follows_color_type_and_transparency_chunk() {
+        let color_type_alpha = |color_type: u8| {
+            let mut bytes = png_header(color_type);
+            push_png_chunk(&mut bytes, b"IDAT", &[0, 0, 0]);
+            push_png_chunk(&mut bytes, b"IEND", &[]);
+            detect_raster_image_has_alpha(&bytes, "image/png")
+        };
+
+        // 颜色类型 4（灰度 + alpha）与 6（真彩 + alpha）才带 alpha 通道。
+        assert!(color_type_alpha(4), "colorType 4 应判为有 alpha");
+        assert!(color_type_alpha(6), "PNG-32（colorType 6）应判为有 alpha");
+        // 0 / 2 / 3 本身没有 alpha 通道：这是「AI 把棋盘格画进像素里」那张不透明 PNG 的形状。
+        assert!(!color_type_alpha(0), "colorType 0 不应判为有 alpha");
+        assert!(
+            !color_type_alpha(2),
+            "PNG-24（colorType 2）不应判为有 alpha"
+        );
+        assert!(
+            !color_type_alpha(3),
+            "colorType 3 无 tRNS 时不应判为有 alpha"
+        );
+        // 未定义的颜色类型失败关闭为「不透明」，不能把坏文件当成透明。
+        assert!(!color_type_alpha(7), "未定义 colorType 不应判为有 alpha");
+
+        // 灰度 / 真彩 / 调色板可以靠 tRNS 声明透明色，那也是真透明 PNG，必须铺棋盘格。
+        for color_type in [0_u8, 2, 3] {
+            let mut bytes = png_header(color_type);
+            push_png_chunk(&mut bytes, b"tRNS", &[0]);
+            push_png_chunk(&mut bytes, b"IDAT", &[0, 0, 0]);
+            push_png_chunk(&mut bytes, b"IEND", &[]);
+            assert!(
+                detect_raster_image_has_alpha(&bytes, "image/png"),
+                "colorType {color_type} + tRNS 也是真透明 PNG"
+            );
+        }
+
+        // tRNS 规范上必须在 IDAT 之前：出现在之后不再继续扫 chunk（成本有界）。
+        let mut late_trns = png_header(3);
+        push_png_chunk(&mut late_trns, b"IDAT", &[0, 0, 0]);
+        push_png_chunk(&mut late_trns, b"tRNS", &[0]);
+        push_png_chunk(&mut late_trns, b"IEND", &[]);
+        assert!(!detect_raster_image_has_alpha(&late_trns, "image/png"));
+    }
+
+    #[test]
+    fn jpeg_and_webp_alpha_follow_container_flags() {
+        // JPEG 没有 alpha 通道：恒不透明（也绝不为了判 alpha 去解码扫描段）。
+        assert!(!detect_raster_image_has_alpha(
+            &jpeg_bytes(40, 20, None),
+            "image/jpeg"
+        ));
+        // 扩展格式 VP8X 的 flags 第 4 位就是 alpha 标志。
+        assert!(detect_raster_image_has_alpha(
+            &webp_vp8x(0x10),
+            "image/webp"
+        ));
+        assert!(!detect_raster_image_has_alpha(
+            &webp_vp8x(0x00),
+            "image/webp"
+        ));
+        // 只有 ICC（0x20）/ EXIF（0x08）等其它标志时不是 alpha。
+        assert!(!detect_raster_image_has_alpha(
+            &webp_vp8x(0x28),
+            "image/webp"
+        ));
+        // 无损 VP8L 的 alpha_is_used 位。
+        assert!(detect_raster_image_has_alpha(
+            &webp_vp8l(true),
+            "image/webp"
+        ));
+        assert!(!detect_raster_image_has_alpha(
+            &webp_vp8l(false),
+            "image/webp"
+        ));
+        // 简单有损格式不带 alpha 通道。
+        assert!(!detect_raster_image_has_alpha(
+            &webp_vp8_simple(),
+            "image/webp"
+        ));
+
+        // 头部被截断时失败关闭为「不透明」，且不得 panic。
+        let truncated_webp = webp_vp8x(0x10);
+        assert!(!detect_raster_image_has_alpha(
+            &truncated_webp[..18],
+            "image/webp"
+        ));
+        let truncated_png = png_header(6);
+        assert!(!detect_raster_image_has_alpha(
+            &truncated_png[..20],
+            "image/png"
+        ));
+    }
+
+    #[test]
+    fn alpha_judgement_never_decodes_pixels() {
+        // 4096×4096 的 PNG-32：真按像素解码要 64 MiB 缓冲，而下面的 IDAT 数据体不是合法
+        // deflate 流（全零），任何真正的解码器都会失败。判据只看头部，所以这里必须成功，
+        // 并且仍然判 has_alpha=true —— 这就是「不做全量解码」的可执行证据。
+        let root = tempfile::tempdir().expect("temp root");
+        fs::create_dir_all(root.path().join("assets/ui")).expect("asset dir");
+        let mut bytes = png_header_with_size(6, 4_096, 4_096);
+        push_png_chunk(&mut bytes, b"IDAT", &[0x00, 0x00, 0x00, 0x00]);
+        push_png_chunk(&mut bytes, b"IEND", &[]);
+        fs::write(root.path().join("assets/ui/large.png"), &bytes).expect("large image");
+
+        let preview = load_local_project_image_preview(root.path(), "assets/ui/large.png")
+            .expect("header-only preview");
+
+        assert_eq!(preview.pixel_width, 4_096);
+        assert_eq!(preview.byte_len, bytes.len() as u64);
+        assert!(preview.has_alpha);
+    }
+
+    #[test]
+    fn image_preview_serializes_alpha_flag_for_the_shell() {
+        let root = tempfile::tempdir().expect("temp root");
+        fs::create_dir_all(root.path().join("assets/ui")).expect("asset dir");
+        fs::write(root.path().join("assets/ui/prototype.png"), png_bytes()).expect("image");
+
+        let preview = load_local_project_image_preview(root.path(), "assets/ui/prototype.png")
+            .expect("load project preview");
+
+        // 前端按 camelCase 读 `hasAlpha`（`ProjectResourceCardPreviewTransportPayload`）；
+        // 字段名或大小写改了会让资源卡永远退回纯色底，所以这里钉住 IPC 契约。
+        let serialized = serde_json::to_value(&preview).expect("serialize preview");
+        assert_eq!(serialized["hasAlpha"], serde_json::json!(true));
     }
 
     #[test]

apps/ai-game-creator-shell/src-tauri/src/main.rs

@@ -244,6 +244,7 @@ macro_rules! app_log {
 // 用 #[cfg] 编译期门控：仅开发（debug）且非测试构建编入；生产 release 与 cargo test 下整体剔除。
 mod agent;
 mod agent_native_tools;
+mod asset_generation_tasks;
 mod assets;
 mod browser;
 mod builtin_plugins;
@@ -289,6 +290,7 @@ mod windows;
 
 use agent::*;
 use agent_native_tools::*;
+use asset_generation_tasks::*;
 use assets::*;
 use browser::*;
 use cli::*;
@@ -2736,6 +2738,8 @@ fn main() {
             ensure_ui_design_resource_for_prototype,
             generate_platform_art_asset,
             generate_local_project_asset,
+            start_local_project_asset_generation,
+            list_local_project_asset_generations,
             open_canvas_project,
             get_game_creation_agent_capabilities,
             get_limited_local_commands,

apps/ai-game-creator-shell/src-tauri/src/provider_handoff.rs

@@ -51,7 +51,6 @@ impl AgentRuntimeProviderHandoffRecord {
             provider: self.response.provider,
             model: self.response.model.clone(),
             text: self.response.text.clone(),
-            reasoning: String::new(),
             finish_reason: self.response.finish_reason.clone(),
             response_id: self.response.response_id.clone(),
             usage: self.response.usage.clone(),
@@ -341,7 +340,6 @@ mod tests {
             provider: LlmProvider::OpenAiCompatible,
             model: "handoff-model".to_string(),
             text: text.to_string(),
-            reasoning: String::new(),
             finish_reason: Some("stop".to_string()),
             response_id: Some("response-handoff".to_string()),
             usage: Some(LlmTokenUsage {

apps/ai-game-creator-shell/src-tauri/src/runner/tests.rs

@@ -2775,7 +2775,6 @@ fn durable_provider_handoff_prevents_shutdown_even_when_corrupt() {
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: "provider-handoff-runner-test".to_string(),
         text: "durable final reply".to_string(),
-        reasoning: String::new(),
         finish_reason: Some("stop".to_string()),
         response_id: Some("provider-handoff-response".to_string()),
         usage: None,

apps/ai-game-creator-shell/src-tauri/src/tests/mod.rs

@@ -4475,7 +4475,6 @@ fn real_e2e_tool_plan_checkpoint_response() -> platform_llm::LlmRunResponse {
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: "real-e2e-checkpoint-model".to_string(),
         text: REAL_E2E_TOOL_PLAN_CHECKPOINT_PRIVATE_RESPONSE.to_string(),
-        reasoning: String::new(),
         finish_reason: Some("tool_calls".to_string()),
         response_id: Some("real-e2e-checkpoint-private-response-id".to_string()),
         usage: None,
@@ -4721,7 +4720,6 @@ fn agent_tool_plan_llm_response(
         provider: platform_llm::LlmProvider::OpenAiCompatible,
         model: "mock-game-model".to_string(),
         text: text.into(),
-        reasoning: String::new(),
         finish_reason: Some("tool_calls".to_string()),
         response_id: Some("response-tool-plan-test".to_string()),
         usage: None,

apps/ai-game-creator-shell/src-tauri/src/tool_plan_handoff/model.rs

@@ -127,7 +127,6 @@ impl AgentRuntimeToolPlanHandoffEntry {
             provider: self.response.provider,
             model: self.response.model.clone(),
             text,
-            reasoning: String::new(),
             finish_reason: self.response.finish_reason.clone(),
             response_id: self.response.response_id.clone(),
             usage: self.response.usage.as_ref().map(LlmTokenUsage::from),

apps/ai-game-creator-shell/src-tauri/src/tool_plan_handoff/tests.rs

@@ -84,7 +84,6 @@ fn response(text: &str, tool_calls: Vec<LlmToolCall>) -> LlmRunResponse {
         provider: LlmProvider::OpenAiCompatible,
         model: "tool-plan-handoff-model".to_string(),
         text: text.to_string(),
-        reasoning: String::new(),
         finish_reason: Some("tool_calls".to_string()),
         response_id: Some("tool-plan-handoff-response".to_string()),
         usage: Some(LlmTokenUsage {

apps/ai-game-creator-shell/src/App.tsx

@@ -596,12 +596,6 @@ export function App({
     projectPath: string;
     clientTurnId: string;
   } | null>(null);
-  const designAgentEventSubscriptionReadyRef = useRef<Promise<void> | null>(
-    null,
-  );
-  const designAgentEventSubscriptionResolveRef = useRef<(() => void) | null>(
-    null,
-  );
   // 做方案入口独立成链：立项策划需要委派、澄清 pending 与 GDD 审批，这些只存在于
   // Supervisor Runtime；direct-codex 是单回合「生成→试玩→修」循环，没有对应机制。
   // 因此策划入口不走产品默认的 direct-codex，做游戏与做素材保持 master 的新默认。
@@ -827,17 +821,7 @@ export function App({
     useState('');
   const planningV2TransientReplyTargetRef = useRef('');
   const planningV2VisibleReplyRef = useRef('');
-  const designAgentPendingViewRef = useRef<{
-    clientTurnId: string;
-    projectPath: string;
-    view: DesignView;
-  } | null>(null);
   const [planningV2Reasoning, setPlanningV2Reasoning] = useState('');
-  const designAgentReasoningTurnRef = useRef<{
-    projectPath: string;
-    clientTurnId: string;
-    text: string;
-  } | null>(null);
   const planningV2TurnRef = useRef<{
     projectPath: string;
     clientTurnId: string;
@@ -865,22 +849,6 @@ export function App({
     }
   }
 
-  function designAgentEventSubscriptionReady() {
-    if (!designAgentEventSubscriptionReadyRef.current) {
-      designAgentEventSubscriptionReadyRef.current = new Promise<void>(
-        (resolve) => {
-          designAgentEventSubscriptionResolveRef.current = resolve;
-        },
-      );
-    }
-    return designAgentEventSubscriptionReadyRef.current;
-  }
-
-  function resolveDesignAgentEventSubscriptionReady() {
-    designAgentEventSubscriptionResolveRef.current?.();
-    designAgentEventSubscriptionResolveRef.current = null;
-  }
-
   useEffect(() => {
     const timer = window.setInterval(() => {
       const target = planningV2TransientReplyTargetRef.current;
@@ -1012,15 +980,6 @@ export function App({
   }
 
   function designMessagesToChat(view: DesignView): ChatMessage[] {
-    const reasoningByMessageId = new Map<string, string[]>();
-    for (const entry of view.reasoningEntries ?? []) {
-      if (!entry.messageId) {
-        continue;
-      }
-      const texts = reasoningByMessageId.get(entry.messageId) ?? [];
-      texts.push(entry.text);
-      reasoningByMessageId.set(entry.messageId, texts);
-    }
     return view.messages
       .filter((message) => message.text.trim())
       .map((message) => ({
@@ -1028,7 +987,6 @@ export function App({
         text: message.text,
         runtimeOwned: true,
         messageId: message.id,
-        reasoningText: reasoningByMessageId.get(message.id)?.join('\n\n'),
         updatedAt: Date.now(),
       }));
   }
@@ -1047,67 +1005,6 @@ export function App({
     latestMessagesRef.current = conversation;
   }
 
-  function commitDesignAgentView(view: DesignView, projectPath: string) {
-    const pendingTurnId = designAgentPendingViewRef.current?.clientTurnId;
-    designAgentPendingViewRef.current = null;
-    applyDesignView(view, projectPath);
-    setPlanningV2Reasoning('');
-    setPlanningV2TransientReplyTarget('');
-    if (designAgentTurnRef.current?.clientTurnId === pendingTurnId) {
-      designAgentTurnRef.current = null;
-    }
-  }
-
-  function applyDesignAgentViewAfterTransient(
-    view: DesignView,
-    projectPath: string,
-    clientTurnId: string,
-  ) {
-    let target = planningV2TransientReplyTargetRef.current;
-    const tracked = designAgentTurnRef.current;
-    if (!target.trim() && !view.running) {
-      const latestAssistantText = [...view.messages]
-        .reverse()
-        .find((message) => message.role !== 'user' && message.text.trim())
-        ?.text.trim();
-      if (latestAssistantText) {
-        setPlanningV2TransientReplyTarget(latestAssistantText);
-        target = latestAssistantText;
-      }
-    }
-    if (
-      !view.running &&
-      tracked?.clientTurnId === clientTurnId &&
-      target.trim() &&
-      planningV2VisibleReplyRef.current !== target
-    ) {
-      designAgentPendingViewRef.current = {
-        clientTurnId,
-        projectPath,
-        view,
-      };
-      return;
-    }
-    commitDesignAgentView(view, projectPath);
-  }
-
-  useEffect(() => {
-    const timer = window.setInterval(() => {
-      const pending = designAgentPendingViewRef.current;
-      if (!pending) {
-        return;
-      }
-      const target = planningV2TransientReplyTargetRef.current;
-      if (target && planningV2VisibleReplyRef.current !== target) {
-        return;
-      }
-      commitDesignAgentView(pending.view, pending.projectPath);
-    }, 50);
-    return () => window.clearInterval(timer);
-    // 收尾定时器只需注册一次；它读取 refs，避免随每次渲染重建。
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, []);
-
   async function hydrateDesignAgentSession(nextProjectPath: string) {
     const invoke = resolveTauriInvoke();
     if (!invoke || !nextProjectPath.trim()) {
@@ -1141,17 +1038,9 @@ export function App({
       projectPath: nextProjectPath,
       clientTurnId,
     };
-    designAgentReasoningTurnRef.current = {
-      projectPath: nextProjectPath,
-      clientTurnId,
-      text: '',
-    };
-    designAgentPendingViewRef.current = null;
-    await designAgentEventSubscriptionReady();
     setChatAgentBusy(true);
     setProjectSupervisorRuntimeError('');
     setPlanningV2TransientReplyTarget('');
-    setPlanningV2Reasoning('');
     try {
       const view = await invoke<DesignView>('continue_design_agent_session', {
         projectPath: nextProjectPath,
@@ -1161,7 +1050,7 @@ export function App({
       if (localProjectPathRef.current !== nextProjectPath) {
         return;
       }
-      applyDesignAgentViewAfterTransient(view, nextProjectPath, clientTurnId);
+      applyDesignView(view, nextProjectPath);
     } catch (error) {
       if (localProjectPathRef.current !== nextProjectPath) {
         return;
@@ -1173,10 +1062,8 @@ export function App({
       setProjectSupervisorRuntimeError(message);
       setPlanGddError(message);
     } finally {
-      if (!designAgentPendingViewRef.current) {
-        designAgentTurnRef.current = null;
-        setPlanningV2TransientReplyTarget('');
-      }
+      designAgentTurnRef.current = null;
+      setPlanningV2TransientReplyTarget('');
       setChatAgentBusy(false);
     }
   }
@@ -1668,9 +1555,6 @@ export function App({
     setProjectSupervisorRuntimeError('');
     setPlanningV2Session(null);
     setPlanningV2TransientReplyTarget('');
-    designAgentPendingViewRef.current = null;
-    designAgentReasoningTurnRef.current = null;
-    setPlanningV2Reasoning('');
     setPlanningV2Active(planningStartMode);
     planningV2ActiveRef.current = planningStartMode;
     designAgentLaneRef.current = planningStartMode;
@@ -2106,14 +1990,8 @@ export function App({
   }, [planningV2Active]);
 
   useEffect(() => {
-    const ready = designAgentEventSubscriptionReady();
     if (!canSubscribeTauriEvents() || !planningV2Active) {
-      resolveDesignAgentEventSubscriptionReady();
-      return () => {
-        if (designAgentEventSubscriptionReadyRef.current === ready) {
-          designAgentEventSubscriptionReadyRef.current = null;
-        }
-      };
+      return;
     }
     let cleanup: (() => void) | null = null;
     let disposed = false;
@@ -2130,45 +2008,26 @@ export function App({
         setPlanningV2TransientReplyTarget(payload.text);
       }
       if (payload.reasoningText != null) {
-        const reasoningTurn = designAgentReasoningTurnRef.current;
-        if (
-          reasoningTurn &&
-          reasoningTurn.projectPath === payload.projectPath &&
-          reasoningTurn.clientTurnId === payload.clientTurnId
-        ) {
-          reasoningTurn.text = payload.reasoningText;
-          setPlanningV2Reasoning(payload.reasoningText);
-        }
+        setPlanningV2Reasoning(payload.reasoningText);
       }
       if (payload.kind === 'tool' && payload.text) {
         setPlanningV2TransientReplyTarget(payload.text);
       }
       if (payload.view) {
-        applyDesignAgentViewAfterTransient(
-          payload.view,
-          payload.projectPath,
-          payload.clientTurnId,
-        );
+        applyDesignView(payload.view, payload.projectPath);
       }
     })
       .then((unlisten) => {
-        resolveDesignAgentEventSubscriptionReady();
         if (disposed) {
           unlisten();
           return;
         }
         cleanup = unlisten;
       })
-      .catch(() => {
-        resolveDesignAgentEventSubscriptionReady();
-      });
+      .catch(() => undefined);
     return () => {
       disposed = true;
       cleanup?.();
-      resolveDesignAgentEventSubscriptionReady();
-      if (designAgentEventSubscriptionReadyRef.current === ready) {
-        designAgentEventSubscriptionReadyRef.current = null;
-      }
     };
     // applyDesignView 读的是 refs 和当前项目路径，
     // 把它写进依赖会在每轮回复时重订事件。
@@ -6213,7 +6072,6 @@ export function App({
     setChatAgentBusy(true);
     setProjectSupervisorRuntimeError('');
     setPlanningV2TransientReplyTarget('');
-    setPlanningV2Reasoning('');
     try {
       const result = currentSessionId
         ? await invoke<PlanningSessionCommandResultV2>(
@@ -11939,9 +11797,6 @@ export function App({
               : projectSupervisorTransientReply
         }
         designReasoning={planningV2Reasoning}
-        designReasoningEntries={
-          useDesignAgentSurface ? (designAgentView?.reasoningEntries ?? []) : []
-        }
         visibleMessages={visibleMessages}
         visibleProfessionalAgentCards={visibleProfessionalAgentCards}
         showProfessionalCollaboration={
@@ -11969,25 +11824,15 @@ export function App({
                   projectPath: nextProjectPath,
                   clientTurnId,
                 };
-                designAgentReasoningTurnRef.current = {
-                  projectPath: nextProjectPath,
-                  clientTurnId,
-                  text: '',
-                };
-                designAgentPendingViewRef.current = null;
                 setPlanningV2TransientReplyTarget('');
-                setPlanningV2Reasoning('');
                 setChatAgentBusy(true);
                 setPlanGddDecisionBusy(true);
-                void designAgentEventSubscriptionReady()
-                  .then(() =>
-                    invoke<DesignView>('decide_design_phase', {
-                      projectPath: nextProjectPath,
-                      clientTurnId,
-                      requestId,
-                      approved,
-                    }),
-                  )
+                void invoke<DesignView>('decide_design_phase', {
+                  projectPath: nextProjectPath,
+                  clientTurnId,
+                  requestId,
+                  approved,
+                })
                   .then((view) => {
                     if (
                       localProjectPathRef.current !== nextProjectPath ||
@@ -11997,11 +11842,7 @@ export function App({
                     ) {
                       return;
                     }
-                    applyDesignAgentViewAfterTransient(
-                      view,
-                      nextProjectPath,
-                      clientTurnId,
-                    );
+                    applyDesignView(view, nextProjectPath);
                   })
                   .catch((error) => {
                     if (
@@ -12023,10 +11864,8 @@ export function App({
                     ) {
                       return;
                     }
-                    if (!designAgentPendingViewRef.current) {
-                      designAgentTurnRef.current = null;
-                      setPlanningV2TransientReplyTarget('');
-                    }
+                    designAgentTurnRef.current = null;
+                    setPlanningV2TransientReplyTarget('');
                     setChatAgentBusy(false);
                     setPlanGddDecisionBusy(false);
                   });

apps/ai-game-creator-shell/src/app/types.ts

@@ -993,7 +993,6 @@ export interface ChatMessage {
   draftCommand?: string;
   draftCommandLabel?: string;
   messageId?: string | null;
-  reasoningText?: string;
   agentId?: string | null;
   updatedAt?: number;
   runtimeOwned?: boolean;
@@ -1039,19 +1038,11 @@ export interface DesignAgentMessage {
   text: string;
 }
 
-export interface DesignReasoningEntry {
-  id: string;
-  text: string;
-  messageId?: string | null;
-}
-
 export interface DesignView {
   session: DesignSessionSummary;
   messages: DesignAgentMessage[];
   running: boolean;
   canRetry: boolean;
-  reasoningText?: string | null;
-  reasoningEntries?: DesignReasoningEntry[];
 }
 
 export interface DesignEvent {

apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx

@@ -16,11 +16,7 @@ import type {
   PlanGddDecisionAction,
   PlanGddStateViewV1,
 } from '../../app/types';
-import type {
-  DesignClarificationRequest,
-  DesignReasoningEntry,
-  DesignView,
-} from '../../app/types';
+import type { DesignClarificationRequest, DesignView } from '../../app/types';
 import { ChatMarkdownMessage } from '../../components/ChatMarkdownMessage';
 import {
   projectProfessionalAgentLabel,
@@ -101,7 +97,6 @@ type ProjectSupervisorViewProps = RuntimePanelProps & {
   showProfessionalCollaboration?: boolean;
   transientReply: string;
   designReasoning?: string;
-  designReasoningEntries?: DesignReasoningEntry[];
   visibleMessages: ChatMessage[];
   visibleProfessionalAgentCards: AgentStatusCard[];
   workspaceStatus: string;
@@ -154,7 +149,6 @@ export function ProjectSupervisorView({
   showProfessionalCollaboration = true,
   transientReply,
   designReasoning = '',
-  designReasoningEntries = [],
   visibleMessages,
   visibleProfessionalAgentCards,
   workspaceStatus,
@@ -266,35 +260,11 @@ export function ProjectSupervisorView({
                 role={message.role}
                 text={projectSupervisorChatMessageText(message)}
               />
-              {message.reasoningText ? (
-                <details
-                  className="design-agent-reasoning"
-                  aria-label="策划 Agent 思考过程"
-                >
-                  <summary>思考过程</summary>
-                  <pre>{message.reasoningText}</pre>
-                </details>
-              ) : null}
             </div>
           ))}
-          {designReasoningEntries
-            .filter((entry) => !entry.messageId)
-            .map((entry) => (
-              <details
-                key={`reasoning-${entry.id}`}
-                className="design-agent-reasoning"
-                aria-label="策划 Agent 思考过程"
-              >
-                <summary>思考过程</summary>
-                <pre>{entry.text}</pre>
-              </details>
-            ))}
           {designReasoning ? (
-            <details
-              className="design-agent-reasoning"
-              aria-label="策划 Agent 思考过程"
-            >
-              <summary>思考过程</summary>
+            <details className="design-agent-reasoning">
+              <summary>显示思考过程</summary>
               <pre>{designReasoning}</pre>
             </details>
           ) : null}

apps/ai-game-creator-shell/src/features/project-workspace/resourceTypePanel.css

@@ -0,0 +1,130 @@
+/*
+ * 「设置素材类型」面板的弹窗骨架、纵向单选列表与信息浮层的类型入口。
+ *
+ * 单独一个文件而不是塞进 styles.css：与「编辑素材标签」面板当初同样的理由 ——
+ * 这份样式只服务本次的素材类型入口，与工作台其它区块没有共享选择器，独立文件让改动
+ * 边界更清楚，也不会与同一时段其它 Agent 在 styles.css 里的编辑互相踩。
+ *
+ * 骨架沿用「编辑素材标签」那套三段式契约（`auto / minmax(0, 1fr)`）：标题常驻、
+ * 中间一行可压缩、`max-height` 兜住上界。类型面板没有底部按钮，所以只有两行。
+ */
+.game-resource-type-dialog {
+  width: min(480px, 100%);
+  max-height: min(720px, calc(100dvh - 40px));
+  grid-template-rows: auto minmax(0, 1fr);
+}
+
+/*
+ * body 分三段：提示 / 选项列表 / 错误提示。
+ *
+ * `min-height: 0` 是网格项能被 `1fr` 压缩的前提；**滚动不在这里**——滚动权交给选项列表
+ * （见下），否则往下滚时素材名和错误提示会跟着跑掉，用户看不到"改的是哪件素材、为什么失败"。
+ */
+.game-resource-type-body {
+  display: grid;
+  grid-template-rows: auto minmax(0, 1fr) auto;
+  gap: 10px;
+  min-height: 0;
+}
+
+/*
+ * 类型选项之上的一句短提示。只说这一屏要选什么，不写规则说明或开发解释。
+ */
+.game-resource-type-hint {
+  margin: 0;
+  color: var(--platform-text-base);
+  font-size: 12px;
+}
+
+/*
+ * 纵向单选列表（`role="radiogroup"`）：**一行一个选项**。
+ *
+ * 之前 6 项横排在一条里（`PlatformSegmentedTabs` 的 3~6 列网格），窄屏上互相叠字读不出来。
+ * 单列网格 + 按行流向是"每项一行、互不重叠"的充分条件：只声明一列，6 个子元素必然上下排 6 行，
+ * 不存在两项挤一行的可能。选项多时列表自己滚（`max-height` + `overflow-y: auto`），
+ * 面板不会被撑高。移动端优先：360px 宽的窄屏同样是这一套声明（没有按宽度改列数的媒体查询）。
+ */
+.game-resource-type-options {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr);
+  grid-auto-flow: row;
+  align-content: start;
+  gap: 6px;
+  min-height: 0;
+  max-height: min(320px, 40dvh);
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  scrollbar-gutter: stable;
+}
+
+/*
+ * 单个选项行：复用共享的 `PlatformNavigableListItem` 骨架（w-full / flex / text-left /
+ * 圆角 / 悬停 / 焦点环都由它给），这里只补"整行可点 + 明确选中态"的表现。
+ *
+ * `width/min-width` 显式写出来，不依赖共享件里的 Tailwind `w-full`：这一行是不是满宽
+ * 决定了"一项一行"能不能成立，不能挂在另一份文件的工具类上。
+ * `min-height: 44px` 是移动端点击热区下限；`overflow-wrap` 让长选项名在窄屏换行而不是溢出。
+ */
+.game-resource-type-option {
+  width: 100%;
+  min-width: 0;
+  min-height: 44px;
+  padding: 8px 12px;
+  border: 1px solid var(--platform-subpanel-border);
+  background: rgb(255 255 255 / 62%);
+  color: var(--platform-text-base);
+  font-size: 13px;
+  font-weight: 600;
+  overflow-wrap: anywhere;
+}
+
+.game-resource-type-option:hover:not(:disabled) {
+  border-color: var(--platform-surface-hover-border);
+}
+
+/*
+ * 选中态完全由 `aria-checked="true"` 驱动：视觉与读屏读的是同一个属性，不会各说一套。
+ *
+ * 选择器显式提权到 (0,3,0) 以上：共享列表行自带的 `.platform-navigable-list-item:hover:not(:disabled)`
+ * 也是 (0,3,0)，只写 `.game-resource-type-option[aria-checked='true']`（(0,2,0)）会在悬停时
+ * 被它的底色顶掉；带 `:hover:not(:disabled)` 的那条 (0,5,0) 保证选中行悬停时也不变色。
+ */
+.game-resource-type-options .game-resource-type-option[aria-checked='true'],
+.game-resource-type-options
+  .game-resource-type-option[aria-checked='true']:hover:not(:disabled) {
+  border-color: var(--platform-warm-border);
+  background: var(--platform-warm-bg);
+  color: var(--platform-text-strong);
+}
+
+.game-resource-type-error {
+  margin: 0;
+  color: #b3261e;
+  font-size: 11px;
+}
+
+/*
+ * 第二入口：信息浮层「分类」行右侧的入口按钮。
+ *
+ * 放在 `dd` **外面**：信息字段的读取口径（`dt` / `dd` 文本逐行比对）在两处共用，
+ * 把按钮塞进 `dd` 会让分类值变成「角色与对象设置」这类拼接文案。
+ */
+.game-resource-info-field-action {
+  align-self: start;
+  margin-left: auto;
+  padding: 0 6px;
+  border: 1px solid var(--platform-subpanel-border);
+  border-radius: 8px;
+  background: transparent;
+  color: var(--platform-text-base);
+  font-size: 11px;
+  line-height: 20px;
+  cursor: pointer;
+}
+
+.game-resource-info-field-action:hover,
+.game-resource-info-field-action:focus-visible {
+  border-color: var(--platform-surface-hover-border);
+  background: var(--platform-warm-bg);
+  color: var(--platform-text-strong);
+}