Q70: provider cooldowns survive restarts

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main/database/migrations/075-provider-cooldowns.ts

@@ -0,0 +1,12 @@
+export const providerCooldownsSchema = `
+  create table if not exists provider_cooldowns (
+    provider_id text primary key references providers(id) on delete cascade,
+    label text not null,
+    until_ms integer not null,
+    strikes integer not null,
+    interactive_probed_at_ms integer
+  );
+
+  insert into schema_migrations(version, name, applied_at)
+  values (75, 'provider_cooldowns', datetime('now'));
+`;

src/main/database/schema.ts

@@ -73,6 +73,7 @@ import { backgroundPollFailuresSchema } from "./migrations/071-background-poll-f
 import { spendSchema } from "./migrations/072-spend";
 import { usageWindowTokensSchema } from "./migrations/073-usage-window-tokens";
 import { runFailureKindSchema } from "./migrations/074-run-failure-kind";
+import { providerCooldownsSchema } from "./migrations/075-provider-cooldowns";
 
 interface Migration {
   version: number;
@@ -155,6 +156,7 @@ const MIGRATIONS: Migration[] = [
   { version: 72, name: "spend", sql: spendSchema },
   { version: 73, name: "usage_window_tokens", sql: usageWindowTokensSchema },
   { version: 74, name: "run_failure_kind", sql: runFailureKindSchema },
+  { version: 75, name: "provider_cooldowns", sql: providerCooldownsSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;