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/serving/venue_pricing_benchmarks.sql

@@ -27,7 +27,7 @@ WITH venue_stats AS (
     MAX(da.active_court_count)                          AS court_count,
     COUNT(DISTINCT da.snapshot_date)                    AS days_observed
   FROM foundation.fct_daily_availability da
-  WHERE TRY_CAST(da.snapshot_date AS DATE) >= CURRENT_DATE - INTERVAL '30 days'
+  WHERE da.snapshot_date >= CURRENT_DATE - INTERVAL '30 days'
     AND da.occupancy_rate IS NOT NULL
     AND da.occupancy_rate BETWEEN 0 AND 1.5
   GROUP BY da.tenant_id, da.country_code, da.city, da.city_slug, da.price_currency