Switch to VectorEngine gpt-image-2 and edits

Replace uses of the legacy `gpt-image-2-all` model with `gpt-image-2` and standardize image workflows: no-reference generation uses POST /v1/images/generations, any-reference flows use POST /v1/images/edits with multipart `image` parts. Update SKILLs, generation scripts, decision logs, and docs to reflect the contract change and edits-vs-generations guidance. Apply corresponding changes across backend (api-server match3d/puzzle modules, openai image adapter, mappers, telemetry, spacetime client/module), frontend components and services (Match3D, Puzzle, CreativeImageInputPanel, runtime shells), and add new spritesheet/parser files and tests. Also add media/logo.png. These changes align repository code and documentation with the VectorEngine image API contract and update generation/upload handling (green-screen -> alpha processing, spritesheet handling, and related tests).

server-rs/crates/spacetime-client/src/mapper/jump_hop.rs

@@ -161,7 +161,11 @@ fn map_jump_hop_work_snapshot(
         path: map_jump_hop_path(snapshot.path),
         character_asset,
         tile_atlas_asset,
-        tile_assets: snapshot.tile_assets.into_iter().map(map_tile_asset).collect(),
+        tile_assets: snapshot
+            .tile_assets
+            .into_iter()
+            .map(map_tile_asset)
+            .collect(),
     })
 }
 
@@ -180,7 +184,11 @@ fn map_jump_hop_draft_snapshot(snapshot: JumpHopDraftSnapshot) -> JumpHopDraftRe
         end_mood_prompt: snapshot.end_mood_prompt,
         character_asset: snapshot.character_asset.map(map_character_asset),
         tile_atlas_asset: snapshot.tile_atlas_asset.map(map_character_asset),
-        tile_assets: snapshot.tile_assets.into_iter().map(map_tile_asset).collect(),
+        tile_assets: snapshot
+            .tile_assets
+            .into_iter()
+            .map(map_tile_asset)
+            .collect(),
         path: snapshot.path.map(map_jump_hop_path),
         cover_composite: snapshot.cover_composite,
         generation_status: parse_generation_status(&snapshot.generation_status),
@@ -268,7 +276,9 @@ fn map_jump_hop_run_snapshot(snapshot: JumpHopRunSnapshot) -> JumpHopRuntimeRunS
                 crate::module_bindings::JumpHopJumpResultKind::Miss => JumpHopJumpResult::Miss,
                 crate::module_bindings::JumpHopJumpResultKind::Hit => JumpHopJumpResult::Hit,
                 crate::module_bindings::JumpHopJumpResultKind::Finish => JumpHopJumpResult::Finish,
-                crate::module_bindings::JumpHopJumpResultKind::Perfect => JumpHopJumpResult::Perfect,
+                crate::module_bindings::JumpHopJumpResultKind::Perfect => {
+                    JumpHopJumpResult::Perfect
+                }
             },
         }),
         started_at_ms: snapshot.started_at_ms,

server-rs/crates/spacetime-client/src/mapper/puzzle.rs

@@ -145,6 +145,12 @@ pub(crate) fn map_puzzle_draft_level(snapshot: PuzzleDraftLevel) -> PuzzleDraftL
         ui_background_prompt: snapshot.ui_background_prompt,
         ui_background_image_src: snapshot.ui_background_image_src,
         ui_background_image_object_key: snapshot.ui_background_image_object_key,
+        level_scene_image_src: snapshot.level_scene_image_src,
+        level_scene_image_object_key: snapshot.level_scene_image_object_key,
+        ui_spritesheet_image_src: snapshot.ui_spritesheet_image_src,
+        ui_spritesheet_image_object_key: snapshot.ui_spritesheet_image_object_key,
+        level_background_image_src: snapshot.level_background_image_src,
+        level_background_image_object_key: snapshot.level_background_image_object_key,
         background_music: snapshot.background_music.map(map_puzzle_audio_asset),
         candidates: snapshot
             .candidates
@@ -392,6 +398,10 @@ pub(crate) fn map_puzzle_runtime_level_snapshot(
         cover_image_src: snapshot.cover_image_src,
         ui_background_image_src: snapshot.ui_background_image_src,
         ui_background_image_object_key: snapshot.ui_background_image_object_key,
+        level_background_image_src: snapshot.level_background_image_src,
+        level_background_image_object_key: snapshot.level_background_image_object_key,
+        ui_spritesheet_image_src: snapshot.ui_spritesheet_image_src,
+        ui_spritesheet_image_object_key: snapshot.ui_spritesheet_image_object_key,
         background_music: snapshot.background_music.map(map_puzzle_audio_asset),
         board: map_puzzle_board_snapshot(snapshot.board),
         status: format_puzzle_runtime_level_status(snapshot.status).to_string(),
@@ -835,6 +845,12 @@ pub struct PuzzleDraftLevelRecord {
     pub ui_background_prompt: Option<String>,
     pub ui_background_image_src: Option<String>,
     pub ui_background_image_object_key: Option<String>,
+    pub level_scene_image_src: Option<String>,
+    pub level_scene_image_object_key: Option<String>,
+    pub ui_spritesheet_image_src: Option<String>,
+    pub ui_spritesheet_image_object_key: Option<String>,
+    pub level_background_image_src: Option<String>,
+    pub level_background_image_object_key: Option<String>,
     pub background_music: Option<PuzzleAudioAssetRecord>,
     pub candidates: Vec<PuzzleGeneratedImageCandidateRecord>,
     pub selected_candidate_id: Option<String>,
@@ -1038,6 +1054,10 @@ pub struct PuzzleRuntimeLevelRecord {
     pub cover_image_src: Option<String>,
     pub ui_background_image_src: Option<String>,
     pub ui_background_image_object_key: Option<String>,
+    pub level_background_image_src: Option<String>,
+    pub level_background_image_object_key: Option<String>,
+    pub ui_spritesheet_image_src: Option<String>,
+    pub ui_spritesheet_image_object_key: Option<String>,
     pub background_music: Option<PuzzleAudioAssetRecord>,
     pub board: PuzzleBoardRecord,
     pub status: String,