Increase VectorEngine timeouts and add image UI

Add VectorEngine image generation config and raise request timeouts (env + scripts) from 180000 to 1000000ms. Introduce a reusable CreativeImageInputPanel component with tests and wire up mobile keyboard-focus helpers; update generation views and related tests (CustomWorldGenerationView, BarkBattle editor, Match3D, Puzzle flows). Improve API error handling / VectorEngine request guidance (packages/shared http.ts and docs), and apply multiple backend/frontend fixes for puzzle/match3d/prompt handling. Also include extensive docs and decision-log updates describing UI/UX decisions and verification steps.

server-rs/crates/spacetime-module/src/match3d/mod.rs

@@ -544,6 +544,16 @@ fn update_match3d_work_tx(
     input: Match3DWorkUpdateInput,
 ) -> Result<Match3DWorkSnapshot, String> {
     let current = find_owned_work(ctx, &input.profile_id, &input.owner_user_id)?;
+    let next = build_updated_match3d_work_row(&current, &input)?;
+    let snapshot = build_work_snapshot(&next)?;
+    replace_work(ctx, &current, next);
+    Ok(snapshot)
+}
+
+fn build_updated_match3d_work_row(
+    current: &Match3DWorkProfileRow,
+    input: &Match3DWorkUpdateInput,
+) -> Result<Match3DWorkProfileRow, String> {
     let tags = parse_tags(&input.tags_json)?;
     let config = Match3DCreatorConfigSnapshot {
         theme_text: clean_string(&input.theme_text, "经典消除"),
@@ -563,7 +573,7 @@ fn update_match3d_work_tx(
         author_display_name: current.author_display_name.clone(),
         game_name: clean_string(&input.game_name, "未命名抓大鹅"),
         theme_text: config.theme_text.clone(),
-        summary_text: clean_string(&input.summary_text, "经典消除玩法"),
+        summary_text: input.summary_text.trim().to_string(),
         tags_json: to_json_string(&tags),
         cover_image_src: input.cover_image_src.trim().to_string(),
         cover_asset_id: input.cover_asset_id.trim().to_string(),
@@ -576,9 +586,7 @@ fn update_match3d_work_tx(
         published_at: current.published_at,
         generated_item_assets_json: current.generated_item_assets_json.clone(),
     };
-    let snapshot = build_work_snapshot(&next)?;
-    replace_work(ctx, &current, next);
-    Ok(snapshot)
+    Ok(next)
 }
 
 fn publish_match3d_work_tx(
@@ -1881,6 +1889,65 @@ mod tests {
         );
     }
 
+    #[test]
+    fn match3d_work_update_preserves_assets_and_allows_empty_summary() {
+        let existing = Match3DWorkProfileRow {
+            profile_id: "profile-1".to_string(),
+            owner_user_id: "user-1".to_string(),
+            source_session_id: "session-1".to_string(),
+            author_display_name: "作者".to_string(),
+            game_name: "水果抓大鹅".to_string(),
+            theme_text: "水果".to_string(),
+            summary_text: "保留描述".to_string(),
+            tags_json: "[\"水果\"]".to_string(),
+            cover_image_src: "/old-cover.png".to_string(),
+            cover_asset_id: "cover-asset-1".to_string(),
+            clear_count: 12,
+            difficulty: 4,
+            config_json: to_json_string(&Match3DCreatorConfigSnapshot {
+                theme_text: "水果".to_string(),
+                reference_image_src: None,
+                clear_count: 12,
+                difficulty: 4,
+                asset_style_id: None,
+                asset_style_label: None,
+                asset_style_prompt: None,
+                generate_click_sound: false,
+            }),
+            publication_status: MATCH3D_PUBLICATION_DRAFT.to_string(),
+            play_count: 2,
+            updated_at: Timestamp::from_micros_since_unix_epoch(1),
+            published_at: None,
+            generated_item_assets_json: Some(
+                r#"[{"itemId":"match3d-item-1","itemName":"草莓","imageSrc":"/generated-match3d-assets/session/profile/items/item/image.png","status":"image_ready"}]"#
+                    .to_string(),
+            ),
+        };
+        let input = Match3DWorkUpdateInput {
+            profile_id: existing.profile_id.clone(),
+            owner_user_id: existing.owner_user_id.clone(),
+            game_name: existing.game_name.clone(),
+            theme_text: existing.theme_text.clone(),
+            summary_text: "   ".to_string(),
+            tags_json: existing.tags_json.clone(),
+            cover_image_src: "/new-cover.png".to_string(),
+            cover_asset_id: existing.cover_asset_id.clone(),
+            clear_count: existing.clear_count,
+            difficulty: existing.difficulty,
+            updated_at_micros: 2,
+        };
+        let next = build_updated_match3d_work_row(&existing, &input).unwrap();
+
+        assert_eq!(next.summary_text, "");
+        assert_eq!(next.cover_image_src, "/new-cover.png");
+        assert_eq!(next.clear_count, 12);
+        assert_eq!(next.difficulty, 4);
+        assert_eq!(
+            next.generated_item_assets_json.as_deref(),
+            existing.generated_item_assets_json.as_deref()
+        );
+    }
+
     #[test]
     fn match3d_publish_ready_requires_five_image_views_per_item() {
         let base_work = Match3DWorkProfileRow {