feat: land page aggregate and phase7 document ai mainline

- 收口 page aggregate 读取、本地状态与命令客户端\n- 接入 phase7 document ai sidecar 与前端编排入口\n- 更新 architecture 与 design 状态迁移

rust/crates/storage-convex-bridge/src/lib.rs

@@ -197,6 +197,45 @@ mod tests {
             .contains("\"name\":\"documents.title.update\""));
     }
 
+    #[test]
+    fn page_head_update_title_command_maps_to_documents_update_title() {
+        let command = CommandEnvelope {
+            name: "page.head.updateTitle".into(),
+            command_id: "cmd_page_title_1".into(),
+            idempotency_key: Some("idem_page_title".into()),
+            actor: ActorPayload {
+                actor_type: "human".into(),
+                actor_id: "user_1".into(),
+                session_id: Some("session_1".into()),
+            },
+            source: SourcePayload {
+                channel: "next-route".into(),
+                client: "wolai-frontend".into(),
+            },
+            target: Some(TargetRef {
+                workspace_id: Some("ws_1".into()),
+                page_id: Some("page_1".into()),
+                block_id: None,
+            }),
+            payload: UpdatePageTitle {
+                page_id: "page_1".into(),
+                title: "新标题".into(),
+            },
+            reason: None,
+            refs: vec![],
+            dry_run: false,
+            validate_only: false,
+        };
+
+        let request =
+            build_write_request(&demo_context(), &command).expect("write request should build");
+        assert_eq!(request.function_name, "documents:updateTitle");
+        assert_eq!(request.workspace_id.as_deref(), Some("ws_1"));
+        assert!(request
+            .payload_json
+            .contains("\"name\":\"page.head.updateTitle\""));
+    }
+
     #[test]
     fn document_save_command_maps_to_documents_update_content() {
         let command = CommandEnvelope {
@@ -237,6 +276,46 @@ mod tests {
         assert!(request.payload_json.contains("\"name\":\"documents.save\""));
     }
 
+    #[test]
+    fn page_body_save_command_maps_to_documents_update_content() {
+        let command = CommandEnvelope {
+            name: "page.body.save".into(),
+            command_id: "cmd_page_save_1".into(),
+            idempotency_key: Some("idem_page_save".into()),
+            actor: ActorPayload {
+                actor_type: "human".into(),
+                actor_id: "user_1".into(),
+                session_id: Some("session_1".into()),
+            },
+            source: SourcePayload {
+                channel: "next-route".into(),
+                client: "wolai-frontend".into(),
+            },
+            target: Some(TargetRef {
+                workspace_id: Some("ws_1".into()),
+                page_id: Some("page_1".into()),
+                block_id: None,
+            }),
+            payload: SavePageContent {
+                page_id: "page_1".into(),
+                workspace_id: Some("ws_1".into()),
+                revision: Some(42),
+                content_json: "{\"type\":\"doc\"}".into(),
+                conflict_detection_key: Some("rev:42".into()),
+            },
+            reason: Some("保存正文".into()),
+            refs: vec!["checklist:c3".into()],
+            dry_run: false,
+            validate_only: false,
+        };
+
+        let request =
+            build_write_request(&demo_context(), &command).expect("write request should build");
+        assert_eq!(request.function_name, "documents:updateContent");
+        assert_eq!(request.workspace_id.as_deref(), Some("ws_1"));
+        assert!(request.payload_json.contains("\"name\":\"page.body.save\""));
+    }
+
     #[test]
     fn document_embed_command_maps_to_documents_update_content() {
         let command = CommandEnvelope {
@@ -608,6 +687,57 @@ mod tests {
             .contains("\"name\":\"documents.options.update\""));
     }
 
+    #[test]
+    fn page_layout_update_options_command_maps_to_documents_update_options() {
+        let command = CommandEnvelope {
+            name: "page.layout.updateOptions".into(),
+            command_id: "cmd_page_options_1".into(),
+            idempotency_key: Some("idem_page_options".into()),
+            actor: ActorPayload {
+                actor_type: "human".into(),
+                actor_id: "user_1".into(),
+                session_id: Some("session_1".into()),
+            },
+            source: SourcePayload {
+                channel: "next-route".into(),
+                client: "wolai-frontend".into(),
+            },
+            target: Some(TargetRef {
+                workspace_id: Some("ws_1".into()),
+                page_id: Some("page_1".into()),
+                block_id: None,
+            }),
+            payload: UpdatePageOptions {
+                page_id: "page_1".into(),
+                wide_layout: None,
+                small_text: None,
+                show_heading_numbers: None,
+                show_toc: Some(true),
+                show_structure: None,
+                protect_editing: None,
+                show_word_count: None,
+                collapse_backlinks: None,
+                page_font: None,
+                layout_density: Some("compact".into()),
+                hide_child_pages: None,
+                show_block_ref_count: None,
+                embed_default_block_id: None,
+            },
+            reason: None,
+            refs: vec![],
+            dry_run: false,
+            validate_only: false,
+        };
+
+        let request =
+            build_write_request(&demo_context(), &command).expect("write request should build");
+        assert_eq!(request.function_name, "documents:updateOptions");
+        assert_eq!(request.workspace_id.as_deref(), Some("ws_1"));
+        assert!(request
+            .payload_json
+            .contains("\"name\":\"page.layout.updateOptions\""));
+    }
+
     #[test]
     fn media_asset_writeback_command_maps_to_replace_storage_from_upload() {
         let command = CommandEnvelope {

rust/crates/storage-convex-bridge/src/mapping.rs

@@ -54,9 +54,12 @@ pub fn map_command_name_to_convex(command_name: &str) -> &'static str {
         "documents.embed" => "documents:updateContent",
         "blocks.patch" => "documents:updateContent",
         "documents.save" => "documents:updateContent",
+        "page.body.save" => "documents:updateContent",
         "documents.title.update" => "documents:updateTitle",
+        "page.head.updateTitle" => "documents:updateTitle",
         "documents.stats.update" => "documents:updateStats",
         "documents.options.update" => "documents:updateOptions",
+        "page.layout.updateOptions" => "documents:updateOptions",
         "mindmaps.put" => "mindmaps:put",
         "mindmaps.delete" => "mindmaps:softDelete",
         "mindmaps.restore" => "mindmaps:restore",