feat: initialize tfcode project structure

- Add README.md as living documentation
- Add tfcode.json schema and config template
- Add FORK_MANAGEMENT.md with mirror-based fork strategy
- Add scripts/rebrand.sh for reapplying branding after upstream merges
- Add packages/tf-sync Python module using official ToothFairyAI SDK
- Add packages/tf-mcp-bridge TypeScript module (stub)
- Multi-region support (AU, EU, US)
- Tool sync: MCP servers, Agent Skills, Database Scripts, API Functions

tfcode.json

@@ -0,0 +1,28 @@
+{
+  "$schema": "./schemas/tfcode.schema.json",
+  "toothfairy": {
+    "workspace_id": "{env:TF_WORKSPACE_ID}",
+    "api_key": "{env:TF_API_KEY}",
+    "region": "au",
+    "sync": {
+      "on_startup": true,
+      "interval": 3600,
+      "tools": {
+        "types": ["mcp", "skill", "database", "function"]
+      }
+    },
+    "mcp_proxy": {
+      "url": "https://mcp-proxy.{region}.toothfairyai.com",
+      "timeout": 30000
+    }
+  },
+  "tools": {},
+  "agent": {
+    "build": {
+      "mode": "primary",
+      "description": "Default coding agent",
+      "mcp": []
+    }
+  },
+  "autoupdate": true
+}