fix(post-suspension): migrate github.com/Molecule-AI refs to git.moleculesai.app (Class G #168)

The GitHub org Molecule-AI was suspended on 2026-05-06; canonical SCM
is now Gitea at https://git.moleculesai.app/molecule-ai/. Stale
github.com/Molecule-AI/... URLs return 404 and break tooling that
clones / pip-installs / curls them.

This bundles all non-Go-module URL fixes for this repo into a single PR.
Go module path references (in *.go, go.mod, go.sum) are out of scope
here -- tracked separately under Task #140.

Token-auth clone URLs also flip ${GITHUB_TOKEN} -> ${GITEA_TOKEN} since
the GitHub token does not auth against Gitea.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -29,6 +29,6 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/Molecule-AI/molecule-mcp-server.git"
+    "url": "https://git.moleculesai.app/molecule-ai/molecule-mcp-server.git"
   }
 }