chore: add aibridge data to telemetry (#20449)

- Adds a new table to keep track of which payloads have already been
reported since we only report for the last clock hour
- Adds a query to gather and aggregate all the data by
provider/model/client

Relates to https://github.com/coder/coder-telemetry-server/issues/27

coderd/database/migrations/testdata/fixtures/000390_telemetry_locks.up.sql

@@ -0,0 +1,8 @@
+INSERT INTO telemetry_locks (
+    event_type,
+    period_ending_at
+)
+VALUES (
+    'aibridge_interceptions_summary',
+    '2025-01-01 00:00:00+00'::timestamptz
+);