Q87: provider errors keep status and provider code; text never decides recovery

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

src/main/database/migrations/074-run-failure-kind.ts

@@ -1,4 +1,5 @@
-import { TRANSIENT_PROVIDER_FAILURE_SIGNATURES } from "../../../shared/provider-runtime-domain";
+/** The message signatures earlier builds classified transient failures by; frozen here to heal their rows. */
+const TRANSIENT_PROVIDER_FAILURE_SIGNATURES = ["provider monthly request limit has been reached.", "usage limit", "rate limit", "too many requests", "overloaded"];
 
 /** Runs record whether they failed for a passing provider reason; older rows are classified from their message once, here. */
 export const runFailureKindSchema = `

src/main/database/migrations/078-request-error-codes.ts

@@ -0,0 +1,7 @@
+export const requestErrorCodesSchema = `
+  alter table provider_requests add column error_status integer;
+  alter table provider_requests add column error_code text;
+
+  insert into schema_migrations(version, name, applied_at)
+  values (78, 'request_error_codes', datetime('now'));
+`;

src/main/database/schema.ts

@@ -76,6 +76,7 @@ import { runFailureKindSchema } from "./migrations/074-run-failure-kind";
 import { providerCooldownsSchema } from "./migrations/075-provider-cooldowns";
 import { runPinsSchema } from "./migrations/076-run-pins";
 import { modelChecksSchema } from "./migrations/077-model-checks";
+import { requestErrorCodesSchema } from "./migrations/078-request-error-codes";
 
 interface Migration {
   version: number;
@@ -161,6 +162,7 @@ const MIGRATIONS: Migration[] = [
   { version: 75, name: "provider_cooldowns", sql: providerCooldownsSchema },
   { version: 76, name: "run_pins", sql: runPinsSchema },
   { version: 77, name: "model_checks", sql: modelChecksSchema },
+  { version: 78, name: "request_error_codes", sql: requestErrorCodesSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;