feat: implement v2 3-tier architecture (mcpctl → mcplocal → mcpd)

- Rename local-proxy to mcplocal with HTTP server, LLM pipeline, mcpd discovery
- Add LLM pre-processing: token estimation, filter cache, metrics, Gemini CLI + DeepSeek providers
- Add mcpd auth (login/logout) and MCP proxy endpoints
- Update CLI: dual URLs (mcplocalUrl/mcpdUrl), auth commands, --direct flag
- Add tiered health monitoring, shell completions, e2e integration tests
- 57 test files, 597 tests passing

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

src/cli/src/config/schema.ts

@@ -1,8 +1,12 @@
 import { z } from 'zod';
 
 export const McpctlConfigSchema = z.object({
-  /** mcpd daemon endpoint */
-  daemonUrl: z.string().default('http://localhost:3000'),
+  /** mcplocal daemon endpoint (local LLM pre-processing proxy) */
+  mcplocalUrl: z.string().default('http://localhost:3200'),
+  /** mcpd daemon endpoint (remote instance manager) */
+  mcpdUrl: z.string().default('http://localhost:3100'),
+  /** @deprecated Use mcplocalUrl instead. Kept for backward compatibility. */
+  daemonUrl: z.string().optional(),
   /** Active registries for search */
   registries: z.array(z.enum(['official', 'glama', 'smithery'])).default(['official', 'glama', 'smithery']),
   /** Cache TTL in milliseconds */
@@ -15,6 +19,13 @@ export const McpctlConfigSchema = z.object({
   outputFormat: z.enum(['table', 'json', 'yaml']).default('table'),
   /** Smithery API key */
   smitheryApiKey: z.string().optional(),
+}).transform((cfg) => {
+  // Backward compatibility: if old daemonUrl is set but mcplocalUrl wasn't explicitly changed,
+  // use daemonUrl as mcplocalUrl
+  if (cfg.daemonUrl && cfg.mcplocalUrl === 'http://localhost:3200') {
+    return { ...cfg, mcplocalUrl: cfg.daemonUrl };
+  }
+  return cfg;
 });
 
 export type McpctlConfig = z.infer<typeof McpctlConfigSchema>;