v2.2-paseo-providers: Paseo provider stack + v2.2.1 pane-scoped chat fixes

Ship Paseo-equivalent provider snapshot, AgentComposerBar, ACP dispatch
rewrite with streaming/persist, permission prompts, and agent commands.
Follow-up: pane-scoped chat resolution, CoderMessageList tool timeline,
WS user-delta replace, and inference orphan tool_call stripping.
Archive openspec v2-2; update CHANGELOG and CURRENT.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/coder/src/index.ts

@@ -23,6 +23,7 @@ import { adaptWriteTool } from './services/tools/adapter.js';
 import { setInferenceContext, clearInferenceContext } from './services/tools/inference_context.js';
 // Routes
 import { registerMessageRoutes } from './routes/messages.js';
+import { registerSkillRoutes } from './routes/skills.js';
 import { registerPendingRoutes } from './routes/pending.js';
 import { registerTaskRoutes } from './routes/tasks.js';
 import { registerInboxRoutes } from './routes/inbox.js';
@@ -33,6 +34,9 @@ import { registerWebSocket } from './routes/ws.js';
 // Phase 4: dispatcher + agent probe
 import { createDispatcher } from './services/dispatcher.js';
 import { probeAgents } from './services/agent-probe.js';
+import { getProviderSnapshot, persistProbedModels } from './services/provider-snapshot.js';
+import { setPermissionHooks } from './services/permission-waiter.js';
+import { homedir } from 'node:os';
 
 async function main() {
   // MCP mode: stdio transport, no HTTP server
@@ -72,6 +76,31 @@ async function main() {
   // Broker: in-memory pub/sub for session + user channel streaming.
   const broker = createBroker(app.log);
 
+  setPermissionHooks({
+    onPrompt: async (prompt) => {
+      await sql`
+        UPDATE tasks SET state = 'blocked' WHERE id = ${prompt.taskId} AND state = 'running'
+      `;
+      broker.publishFrame(prompt.sessionId, {
+        type: 'permission_requested',
+        task_id: prompt.taskId,
+        session_id: prompt.sessionId,
+        tool_title: prompt.toolTitle,
+        options: prompt.options.map((o) => ({ option_id: o.optionId, label: o.label })),
+      } as WsFrame);
+    },
+    onResolved: async (taskId, sessionId) => {
+      await sql`
+        UPDATE tasks SET state = 'running' WHERE id = ${taskId} AND state = 'blocked'
+      `;
+      broker.publishFrame(sessionId, {
+        type: 'permission_resolved',
+        task_id: taskId,
+        session_id: sessionId,
+      } as WsFrame);
+    },
+  });
+
   // --- Tool registry extension ---
   // Append BooCoder write tools (adapted to BooChat's ToolDef interface) to
   // the shared ALL_TOOLS registry. appendMcpTools re-sorts and rebuilds
@@ -134,6 +163,16 @@ async function main() {
   // Phase 4: probe available agents on startup
   await probeAgents(sql, app.log);
 
+  // Warm provider snapshot in background (ACP cold probes + model merges)
+  void getProviderSnapshot(sql, config, homedir(), true)
+    .then((entries) => persistProbedModels(sql, entries, app.log))
+    .catch((err) => {
+      app.log.warn(
+        { err: err instanceof Error ? err.message : String(err) },
+        'provider-snapshot: warm failed',
+      );
+    });
+
   // Phase 4: dispatcher — polls tasks table and runs inference
   const dispatcher = createDispatcher({ sql, inference: inferenceApi, broker, log: app.log, config });
   dispatcher.start();
@@ -141,6 +180,7 @@ async function main() {
 
   // Register routes
   registerMessageRoutes(app, sql, broker, inferenceApi);
+  registerSkillRoutes(app, sql, broker, inferenceApi);
   registerPendingRoutes(app, sql);
   registerTaskRoutes(app, sql, inferenceApi);
   registerInboxRoutes(app, sql);