events: add v1.6.8-aio.1

Rebase onto upstream v1.6.8 — ticket waves, with pricing, inventory and
the published NIP-52 counts following the wave the buyer selected rather
than the primary-wave roll-up; per-wave capacity required; SatsPay
on-chain dropped pending native LndRest (aiolabs/events#41).

Added alongside v1.6.1-aio.18 rather than over it — instances still on
the previous version need theirs to stay resolvable.

Archive sha256 verified against two independent fetches. Tested on
bohm's dev LNbits before tagging: fork migration m004 applied, a
purchase from the 25-sat wave minted a 25-sat invoice rather than the
primary wave's 10, and the relay copy carried the active wave's counts.

extensions.json

@@ -355,6 +355,16 @@
             "archive": "https://git.atitlan.io/aiolabs/events/archive/v1.6.1-aio.18.zip",
             "hash": "b33c00d4fc5ff4fd635b35e4416df991f18621615dd563bd739c1845904f2f38"
         },
+        {
+            "id": "events",
+            "repo": "https://git.atitlan.io/aiolabs/events",
+            "name": "AIO Events",
+            "version": "1.6.8-aio.1",
+            "short_description": "Rebase onto upstream v1.6.8: ticket waves give each tier its own price, currency and stock. Pricing, inventory and the published NIP-52 counts now follow the wave a buyer actually selected rather than the first wave, every wave must state a capacity, and on-chain sales wait for native LndRest instead of SatsPay.",
+            "icon": "https://git.atitlan.io/aiolabs/events/raw/branch/main/static/image/events.png",
+            "archive": "https://git.atitlan.io/aiolabs/events/archive/v1.6.8-aio.1.zip",
+            "hash": "3a59056914ca8ca85bcf4415bd639216460f2ee3b1f96bfa8a9d6d4237216b05"
+        },
         {
             "id": "nostrclient",
             "repo": "https://git.atitlan.io/aiolabs/nostrclient",