refactor: serve MCP bundles under <name>/mcp with nginx guard; rename core->mcp_server

- collect.py: copy repo MCP bundles to ROOT/<name>/mcp (instead of ROOT/mcp/<name>); add nginx location guard to deny /<name>/mcp/
- config.py: bundle roots now point to <repo>/mcp and standards/mcp for static bundles
- Rename core.py -> mcp_server.py and update imports in main.py and registry.py
- Dockerfile: per-repo MCP COPYs under /app/<name>/mcp, drop blog copy; add ports 8008/8009 in .drone.yml
- Restore standards/mcp/libraries.json from git for registry server

mail-intake/mcp/nav.json

@@ -0,0 +1,90 @@
+[
+  {
+    "module": "mail_intake",
+    "resource": "docs://modules/mail_intake"
+  },
+  {
+    "module": "mail_intake.adapters",
+    "resource": "docs://modules/mail_intake.adapters"
+  },
+  {
+    "module": "mail_intake.adapters.base",
+    "resource": "docs://modules/mail_intake.adapters.base"
+  },
+  {
+    "module": "mail_intake.adapters.gmail",
+    "resource": "docs://modules/mail_intake.adapters.gmail"
+  },
+  {
+    "module": "mail_intake.auth",
+    "resource": "docs://modules/mail_intake.auth"
+  },
+  {
+    "module": "mail_intake.auth.base",
+    "resource": "docs://modules/mail_intake.auth.base"
+  },
+  {
+    "module": "mail_intake.auth.google",
+    "resource": "docs://modules/mail_intake.auth.google"
+  },
+  {
+    "module": "mail_intake.config",
+    "resource": "docs://modules/mail_intake.config"
+  },
+  {
+    "module": "mail_intake.credentials",
+    "resource": "docs://modules/mail_intake.credentials"
+  },
+  {
+    "module": "mail_intake.credentials.pickle",
+    "resource": "docs://modules/mail_intake.credentials.pickle"
+  },
+  {
+    "module": "mail_intake.credentials.redis",
+    "resource": "docs://modules/mail_intake.credentials.redis"
+  },
+  {
+    "module": "mail_intake.credentials.store",
+    "resource": "docs://modules/mail_intake.credentials.store"
+  },
+  {
+    "module": "mail_intake.exceptions",
+    "resource": "docs://modules/mail_intake.exceptions"
+  },
+  {
+    "module": "mail_intake.ingestion",
+    "resource": "docs://modules/mail_intake.ingestion"
+  },
+  {
+    "module": "mail_intake.ingestion.reader",
+    "resource": "docs://modules/mail_intake.ingestion.reader"
+  },
+  {
+    "module": "mail_intake.models",
+    "resource": "docs://modules/mail_intake.models"
+  },
+  {
+    "module": "mail_intake.models.message",
+    "resource": "docs://modules/mail_intake.models.message"
+  },
+  {
+    "module": "mail_intake.models.thread",
+    "resource": "docs://modules/mail_intake.models.thread"
+  },
+  {
+    "module": "mail_intake.parsers",
+    "resource": "docs://modules/mail_intake.parsers"
+  },
+  {
+    "module": "mail_intake.parsers.body",
+    "resource": "docs://modules/mail_intake.parsers.body"
+  },
+  {
+    "module": "mail_intake.parsers.headers",
+    "resource": "docs://modules/mail_intake.parsers.headers"
+  },
+  {
+    "module": "mail_intake.parsers.subject",
+    "resource": "docs://modules/mail_intake.parsers.subject"
+  }
+]