feat(editor): save leptos island and page aggregate alignment progress

- switch main document flow toward leptos tiptap island host and generated runtime assets

- align page aggregate loading, page head single-source updates, and AI tool result recovery

- add tests and smoke scripts for title sync, AI route recovery, and editor host cutover

.gitignore

@@ -48,17 +48,18 @@ wolai-frontend/public/documents/
 wolai-frontend/public/documents/**
 artifacts/
 artifacts/**
-tmp
-design
-
-# Rust 本地构建与调试产物
-/rust/target/
-/rust/spikes/**/target/
-
-# Harness 本地运行状态/调试产物
-/.harness-active
-/.harness-stop-counter
-/harness-tasks.json.bak
-
-# pnpm 本地缓存
-/.pnpm-store/
+tmp
+design
+
+# Rust 本地构建与调试产物
+/rust/target/
+/rust/spikes/**/target/
+
+# Harness 本地运行状态/调试产物
+/.harness-active
+/.harness-stop-counter
+/harness-tasks.json.bak
+
+# pnpm 本地缓存
+/.pnpm-store/
+.playwright-mcp