feat(openclaw): add Workspace Files panel for managing bootstrap md files

Add a dedicated panel to read/write OpenClaw's 6 workspace bootstrap files
(AGENTS.md, SOUL.md, USER.md, IDENTITY.md, TOOLS.md, MEMORY.md) directly
from ~/.openclaw/workspace/, with a whitelist-secured backend and Markdown
editor UI. Also fix prompt auto-import missing OpenCode/OpenClaw and the
PromptFormPanel filenameMap type exclusion.

src/lib/api/index.ts

@@ -9,6 +9,7 @@ export { vscodeApi } from "./vscode";
 export { proxyApi } from "./proxy";
 export { openclawApi } from "./openclaw";
 export { sessionsApi } from "./sessions";
+export { workspaceApi } from "./workspace";
 export * as configApi from "./config";
 export type { ProviderSwitchEvent } from "./providers";
 export type { Prompt } from "./prompts";

src/lib/api/workspace.ts

@@ -0,0 +1,11 @@
+import { invoke } from "@tauri-apps/api/core";
+
+export const workspaceApi = {
+  async readFile(filename: string): Promise<string | null> {
+    return invoke<string | null>("read_workspace_file", { filename });
+  },
+
+  async writeFile(filename: string, content: string): Promise<void> {
+    return invoke<void>("write_workspace_file", { filename, content });
+  },
+};