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/api-server/src/openai_image_generation.rs

@@ -628,12 +628,12 @@ mod tests {
         let root_settings = OpenAiImageSettings {
             base_url: "https://vector.example".to_string(),
             api_key: "test-key".to_string(),
-            request_timeout_ms: 180_000,
+            request_timeout_ms: 1_000_000,
         };
         let v1_settings = OpenAiImageSettings {
             base_url: "https://vector.example/v1".to_string(),
             api_key: "test-key".to_string(),
-            request_timeout_ms: 180_000,
+            request_timeout_ms: 1_000_000,
         };
 
         assert_eq!(