fix(@agentsys/lib): add ./repo-intel to package exports map

Cursor Bugbot caught: the new lib/repo-intel module wasn't in the
`exports` map of lib/package.json, so direct subpath imports
`require('@agentsys/lib/repo-intel')` would fail with
ERR_PACKAGE_PATH_NOT_EXPORTED. Top-level `require('@agentsys/lib').repoIntel`
worked but subpath imports (the pattern used elsewhere in the codebase
for cross-platform, collectors, enhance, etc.) didn't.

Adds two entries:
- ./repo-intel        -> ./repo-intel/index.js
- ./repo-intel/queries -> ./repo-intel/queries.js

Verified both subpath imports resolve cleanly.

Author: avifenesh

lib/package.json

@@ -13,6 +13,8 @@
     "./discovery": "./discovery/index.js",
     "./enhance": "./enhance/index.js",
     "./perf": "./perf/index.js",
+    "./repo-intel": "./repo-intel/index.js",
+    "./repo-intel/queries": "./repo-intel/queries.js",
     "./repo-map": "./repo-map/index.js",
     "./collectors/codebase": "./collectors/codebase.js",
     "./collectors/docs-patterns": "./collectors/docs-patterns.js",