fix(growth): harden AI jobs and cost controls

migrations/000002_growth_analyst.sql

@@ -20,8 +20,12 @@ CREATE TABLE IF NOT EXISTS growth_reports (
     input_tokens bigint NOT NULL DEFAULT 0 CHECK (input_tokens >= 0),
     output_tokens bigint NOT NULL DEFAULT 0 CHECK (output_tokens >= 0),
     latency_ms bigint NOT NULL DEFAULT 0 CHECK (latency_ms >= 0),
+	provider_requests bigint NOT NULL DEFAULT 0 CHECK (provider_requests >= 0),
+	reserved_tokens bigint NOT NULL DEFAULT 0 CHECK (reserved_tokens >= 0),
     provider_request_id text,
     estimated_cost text,
+	lease_token text,
+	lease_expires_at timestamptz,
     manual_refresh boolean NOT NULL DEFAULT false,
     tehran_refresh_day date,
     created_at timestamptz NOT NULL DEFAULT now(),
@@ -33,6 +37,14 @@ ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS provider_request_id text;
 -- statement-break
 ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS estimated_cost text;
 -- statement-break
+ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS provider_requests bigint NOT NULL DEFAULT 0 CHECK (provider_requests >= 0);
+-- statement-break
+ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS reserved_tokens bigint NOT NULL DEFAULT 0 CHECK (reserved_tokens >= 0);
+-- statement-break
+ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS lease_token text;
+-- statement-break
+ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS lease_expires_at timestamptz;
+-- statement-break
 ALTER TABLE growth_reports ALTER COLUMN deterministic_evidence DROP NOT NULL;
 -- statement-break
 CREATE UNIQUE INDEX IF NOT EXISTS growth_reports_current_fingerprint_idx