Exclude PM room types from shared daily report processing

database/021_daily_pm_exclusion.down.sql

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+-- Never roll back after PM exclusion facts have been committed.
+BEGIN;
+DO $$
+BEGIN
+    IF current_database() <> 'booking_test' THEN
+        RAISE EXCEPTION 'ARR migration is allowed only in booking_test';
+    END IF;
+    IF EXISTS (SELECT 1 FROM finance.daily_versions WHERE excluded_pm_rows <> 0)
+       OR EXISTS (SELECT 1 FROM finance.daily_records WHERE outcome = 'excluded_pm') THEN
+        RAISE EXCEPTION 'refusing rollback: PM-exclusion facts exist';
+    END IF;
+END $$;
+
+ALTER TABLE finance.daily_records DROP CONSTRAINT daily_records_pm_exclusion_shape;
+ALTER TABLE finance.daily_records DROP CONSTRAINT daily_records_outcome_check;
+ALTER TABLE finance.daily_records
+    ADD CONSTRAINT daily_records_outcome_check CHECK (outcome IN (
+        'retained', 'excluded_rate_code', 'duplicate', 'validation_failed',
+        'price_unmatched', 'excluded_cancelled'
+    ));
+ALTER TABLE finance.daily_versions DROP CONSTRAINT daily_versions_counts_reconcile;
+ALTER TABLE finance.daily_versions
+    ADD CONSTRAINT daily_versions_counts_reconcile CHECK (
+        source_rows = retained_rows + excluded_rate_code_rows + duplicate_rows
+            + validation_failed_rows + price_unmatched_rows + excluded_cancelled_rows
+    );
+ALTER TABLE finance.daily_versions DROP COLUMN excluded_pm_rows;
+COMMIT;

database/021_daily_pm_exclusion.sql

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+-- Add PM exclusion auditing without rewriting any released daily facts.
+-- PostgreSQL 15+. Migrations 008 through 020 remain immutable.
+BEGIN;
+DO $$
+BEGIN
+    IF current_database() <> 'booking_test' THEN
+        RAISE EXCEPTION 'ARR migration is allowed only in booking_test';
+    END IF;
+    IF NOT EXISTS (
+        SELECT 1 FROM information_schema.columns
+        WHERE table_schema = 'finance' AND table_name = 'daily_versions'
+          AND column_name = 'excluded_cancelled_rows'
+          AND data_type = 'integer' AND is_nullable = 'NO'
+    ) OR NOT EXISTS (
+        SELECT 1 FROM pg_constraint
+        WHERE conrelid = 'finance.daily_records'::regclass
+          AND conname = 'daily_records_outcome_check'
+          AND pg_get_constraintdef(oid) LIKE '%excluded_cancelled%'
+    ) THEN
+        RAISE EXCEPTION 'ARR migration 020 must be applied first';
+    END IF;
+END $$;
+
+ALTER TABLE finance.daily_versions
+    ADD COLUMN excluded_pm_rows integer NOT NULL DEFAULT 0 CHECK (excluded_pm_rows >= 0);
+
+ALTER TABLE finance.daily_versions DROP CONSTRAINT daily_versions_counts_reconcile;
+ALTER TABLE finance.daily_versions
+    ADD CONSTRAINT daily_versions_counts_reconcile CHECK (
+        source_rows = retained_rows + excluded_rate_code_rows + duplicate_rows
+            + validation_failed_rows + price_unmatched_rows + excluded_cancelled_rows + excluded_pm_rows
+    );
+
+ALTER TABLE finance.daily_records DROP CONSTRAINT daily_records_outcome_check;
+ALTER TABLE finance.daily_records
+    ADD CONSTRAINT daily_records_outcome_check CHECK (outcome IN (
+        'retained', 'excluded_rate_code', 'duplicate', 'validation_failed',
+        'price_unmatched', 'excluded_cancelled', 'excluded_pm'
+    ));
+ALTER TABLE finance.daily_records
+    ADD CONSTRAINT daily_records_pm_exclusion_shape CHECK (
+        outcome <> 'excluded_pm' OR (
+            room_category_label IS NOT NULL AND upper(btrim(room_category_label)) = 'PM'
+            AND decision_codes = ARRAY['ROOM_TYPE_PM_EXCLUDED']::text[]
+            AND real_price IS NULL AND total_price IS NULL AND kb_amount IS NULL
+            AND channel_key IS NULL AND pricing_method IS NULL
+        )
+    );
+
+COMMENT ON COLUMN finance.daily_versions.excluded_pm_rows IS
+  'Source rows explicitly excluded for PM room type under the pinned processor rules; older versions remain zero.';
+COMMIT;