fix: harden WhatsApp target alias salvage

Add a parser-only routing regression that proves raw WhatsApp group JIDs bypass channel-directory resolution and home-channel fallback, include channel_aliases.json in quick state snapshots, harden malformed alias handling, and map Keiron McCammon for release attribution.

tests/hermes_cli/test_backup.py

@@ -1199,6 +1199,9 @@ class TestQuickSnapshot:
         (home / "config.yaml").write_text("model:\n  provider: openrouter\n")
         (home / ".env").write_text("OPENROUTER_API_KEY=test-key-123\n")
         (home / "auth.json").write_text('{"providers": {}}\n')
+        (home / "channel_aliases.json").write_text(
+            '{"whatsapp": {"120363408391911677@g.us": "general"}}\n'
+        )
         (home / "cron").mkdir()
         (home / "cron" / "jobs.json").write_text('{"jobs": []}\n')
 
@@ -1241,6 +1244,13 @@ class TestQuickSnapshot:
         snap_id = create_quick_snapshot(hermes_home=hermes_home)
         assert (hermes_home / "state-snapshots" / snap_id / "cron" / "jobs.json").exists()
 
+    def test_copies_channel_aliases(self, hermes_home):
+        from hermes_cli.backup import create_quick_snapshot
+        snap_id = create_quick_snapshot(hermes_home=hermes_home)
+        copied = hermes_home / "state-snapshots" / snap_id / "channel_aliases.json"
+        assert copied.exists()
+        assert "120363408391911677@g.us" in copied.read_text()
+
     def test_missing_files_skipped(self, hermes_home):
         from hermes_cli.backup import create_quick_snapshot
         snap_id = create_quick_snapshot(hermes_home=hermes_home)