fix(dev): proxy content registry to CLI server

Inline spark tables (role=spark-table) live in the content registry, but the
rsbuild dev proxy forwarded only /__COMPLETIONS.json and
/__CONTENT_INDEX.json. The registry fetch fell back to the SPA index.html,
so /roll resolved the inline CSV as HTML and csv-parse failed with an
invalid opening quote.

Load the registry before publishing the loaded completions state so a roll
cannot fire while inline content is still unresolvable.

docs/development.md

@@ -253,7 +253,7 @@ npm test -- --watch
 - Web 前端：rsbuild 开发服务器，端口 **5173**
 - CLI 内容服务器：`tttk serve`，端口 **3000**（内容 API + Journal）
 
-rsbuild 会把 `/__CONTENT_INDEX.json`、`/__COMPLETIONS.json`、`/content`、`/.ttrpg` 代理到 CLI 的
+rsbuild 会把 `/__CONTENT_INDEX.json`、`/__COMPLETIONS.json`、`/__CONTENT_REGISTRY.json`、`/content`、`/.ttrpg` 代理到 CLI 的
 3000 端口，因此必须先启动 CLI，否则前端拿不到内容。
 
 ### Web 开发

rsbuild.config.ts

@@ -55,6 +55,7 @@ export default defineConfig({
       // Proxy content API requests to the CLI dev server (npm run tttk)
       "/__CONTENT_INDEX.json": "http://localhost:3000",
       "/__COMPLETIONS.json": "http://localhost:3000",
+      "/__CONTENT_REGISTRY.json": "http://localhost:3000",
       "/content": "http://localhost:3000",
       "/.ttrpg": "http://localhost:3000",
     },

src/components/journal/completions.ts

@@ -138,8 +138,11 @@ const _initPromise: Promise<void> = (async () => {
   // 1. Try server first (CLI mode)
   const serverData = await tryServer();
   if (serverData) {
-    setCompletionsState({ status: "loaded", data: serverData });
+    // Load the registry before publishing the loaded state: dispatching a
+    // command only becomes possible once completions are "loaded", and inline
+    // spark-table CSVs are resolved through this registry at roll time.
     await tryServerRegistry();
+    setCompletionsState({ status: "loaded", data: serverData });
     try {
       initReactivity({
         declarations: serverData.declarations,

src/data-loader/file-index.ts

@@ -8,7 +8,7 @@
  * Dev 工作流：运行 CLI 服务器并在 rsbuild 配置中设置代理
  *   > npm run tttk serve ./content
  *   > npm run dev
- *  rsbuild 会将 /__CONTENT_INDEX.json、/__COMPLETIONS.json、/content/ 代理到 CLI 服务器
+ *  rsbuild 会将 /__CONTENT_INDEX.json、/__COMPLETIONS.json、/__CONTENT_REGISTRY.json、/content/ 代理到 CLI 服务器
  */
 
 import {