feat: add import execution api

apps/api/migrations/202606240002_import_execution.sql

@@ -0,0 +1,30 @@
+CREATE TABLE IF NOT EXISTS raw.import_rows (
+    import_row_id BIGSERIAL PRIMARY KEY,
+    run_id BIGINT NOT NULL REFERENCES audit.ingestion_runs(run_id),
+    raw_artifact_id BIGINT NOT NULL REFERENCES audit.raw_artifacts(artifact_id),
+    template_name TEXT NOT NULL,
+    target_table TEXT NOT NULL,
+    row_number INTEGER NOT NULL CHECK (row_number >= 2),
+    payload JSONB NOT NULL,
+    imported_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    UNIQUE (run_id, template_name, row_number)
+);
+
+ALTER TABLE silver.area_monthly_metrics
+    ADD COLUMN IF NOT EXISTS ingestion_run_id BIGINT REFERENCES audit.ingestion_runs(run_id),
+    ADD COLUMN IF NOT EXISTS raw_artifact_id BIGINT REFERENCES audit.raw_artifacts(artifact_id);
+
+ALTER TABLE silver.neighborhood_monthly_metrics
+    ADD COLUMN IF NOT EXISTS ingestion_run_id BIGINT REFERENCES audit.ingestion_runs(run_id),
+    ADD COLUMN IF NOT EXISTS raw_artifact_id BIGINT REFERENCES audit.raw_artifacts(artifact_id);
+
+CREATE INDEX IF NOT EXISTS idx_import_rows_run_id
+    ON raw.import_rows(run_id);
+CREATE INDEX IF NOT EXISTS idx_import_rows_raw_artifact_id
+    ON raw.import_rows(raw_artifact_id);
+CREATE INDEX IF NOT EXISTS idx_import_rows_template_name
+    ON raw.import_rows(template_name, imported_at DESC);
+CREATE INDEX IF NOT EXISTS idx_area_metrics_ingestion_run
+    ON silver.area_monthly_metrics(ingestion_run_id);
+CREATE INDEX IF NOT EXISTS idx_neighborhood_metrics_ingestion_run
+    ON silver.neighborhood_monthly_metrics(ingestion_run_id);