feat: file cache, pause queue, hot-reload, and cache CLI commands

- Persistent file cache in ~/.mcpctl/cache/proxymodel/ with LRU eviction
- Pause queue for temporarily holding MCP traffic
- Hot-reload watcher for custom stages and proxymodel definitions
- CLI: mcpctl cache list/clear/stats commands
- HTTP endpoints for cache and pause management

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/src/index.ts

@@ -16,6 +16,7 @@ import { createAttachServerCommand, createDetachServerCommand, createApproveComm
 import { createMcpCommand } from './commands/mcp.js';
 import { createPatchCommand } from './commands/patch.js';
 import { createConsoleCommand } from './commands/console/index.js';
+import { createCacheCommand } from './commands/cache.js';
 import { ApiClient, ApiError } from './api-client.js';
 import { loadConfig } from './config/index.js';
 import { loadCredentials } from './auth/index.js';
@@ -211,6 +212,11 @@ export function createProgram(): Command {
     getProject: () => program.opts().project as string | undefined,
   }));
 
+  program.addCommand(createCacheCommand({
+    log: (...args) => console.log(...args),
+    mcplocalUrl: config.mcplocalUrl,
+  }));
+
   return program;
 }