feat: add Cortex - complete CLI command center for configuration and coordination

- New CLI tool for managing Brainy databases
- Encrypted configuration management (replaces .env files)
- Distributed storage migration coordination
- Advanced MongoDB-style query interface
- Backup/restore, health checks, statistics
- Interactive shell mode
- One-line integration: await brainy.loadEnvironment()
- Full documentation and migration guides
- Node.js only (browser safe with environment detection)

BREAKING CHANGE: Package size increased ~250KB due to CLI dependencies

package.json

@@ -6,6 +6,9 @@
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
   "type": "module",
+  "bin": {
+    "cortex": "./dist/cortex/cli.js"
+  },
   "sideEffects": [
     "./dist/setup.js",
     "./dist/utils/textEncoding.js",
@@ -158,7 +161,11 @@
     "@huggingface/transformers": "^3.1.0",
     "@smithy/node-http-handler": "^4.1.1",
     "buffer": "^6.0.3",
+    "chalk": "^5.3.0",
+    "cli-table3": "^0.6.3",
+    "commander": "^11.1.0",
     "dotenv": "^16.4.5",
+    "ora": "^7.0.1",
     "uuid": "^9.0.1"
   },
   "prettier": {