fix(pipeline): make availability chain incremental + fix supervisor

Convert the availability chain (stg_playtomic_availability →
fct_availability_slot → fct_daily_availability) from FULL to
INCREMENTAL_BY_TIME_RANGE so sqlmesh run processes only new daily
intervals instead of re-reading all files.

Supervisor changes:
- run_transform(): plan prod --auto-apply → run prod (evaluates
  missing cron intervals, picks up new data)
- git_pull_and_sync(): add plan prod --auto-apply before re-exec
  so model code changes are applied on deploy
- supervisor.sh: same plan → run change

Staging model uses a date-scoped glob (@start_ds) to read only
the current interval's files. snapshot_date cast to DATE (was
VARCHAR) as required by time_column.

Clean up redundant TRY_CAST(snapshot_date AS DATE) in
venue_pricing_benchmarks since it's already DATE from foundation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

transform/sqlmesh_padelnomics/models/foundation/fct_daily_availability.sql

@@ -12,7 +12,10 @@
 
 MODEL (
   name foundation.fct_daily_availability,
-  kind FULL,
+  kind INCREMENTAL_BY_TIME_RANGE (
+    time_column snapshot_date
+  ),
+  start '2026-03-01',
   cron '@daily',
   grain (snapshot_date, tenant_id)
 );
@@ -37,6 +40,7 @@ WITH slot_agg AS (
     MAX(a.price_currency)                                 AS price_currency,
     MAX(a.captured_at_utc)                                AS captured_at_utc
   FROM foundation.fct_availability_slot a
+  WHERE a.snapshot_date BETWEEN @start_ds AND @end_ds
   GROUP BY a.snapshot_date, a.tenant_id
 )
 SELECT