catalog: add chatelet v0.1.0 (Nostr-native room rentals)

New aio-original extension. Archive pinned to v0.1.0 tag (sha256
4f96a2c1…c4b1). aio-original, not a fork, so plain vX.Y.Z tag scheme.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VUQCfdqiLSsFS2jcGnaFD

extensions.json

@@ -495,6 +495,17 @@
             "icon": "https://git.atitlan.io/aiolabs/tasks/raw/branch/main/static/image/tasks.png",
             "archive": "https://git.atitlan.io/aiolabs/tasks/archive/v0.0.1.zip",
             "hash": "0564d3c51fbadc5e4f4a2c547248e954aa6e0fc796cef266304ae47f3a12dc35"
+        },
+        {
+            "id": "chatelet",
+            "repo": "https://git.atitlan.io/aiolabs/chatelet",
+            "name": "Chatelet",
+            "min_lnbits_version": "1.4.0",
+            "version": "0.1.0",
+            "short_description": "Nostr-native room rentals (Airbnb-style) for LNbits",
+            "icon": "https://git.atitlan.io/aiolabs/chatelet/raw/branch/main/static/image/aio.png",
+            "archive": "https://git.atitlan.io/aiolabs/chatelet/archive/v0.1.0.zip",
+            "hash": "4f96a2c1d8e6d9dd1013aa7c0957de503b97f0582b63afb351cb06d2d714c4b1"
         }
     ]
 }