jobs: add mode and exit_code columns (phase 1a)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/databases/officer_db/migrations/0005_small_the_phantom.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "pipeline_jobs" ADD COLUMN "mode" text DEFAULT 'pipeline' NOT NULL;--> statement-breakpoint
+ALTER TABLE "pipeline_jobs" ADD COLUMN "exit_code" integer;

src/databases/officer_db/migrations/meta/_journal.json

@@ -36,6 +36,13 @@
       "when": 1784593790333,
       "tag": "0004_true_annihilus",
       "breakpoints": true
+    },
+    {
+      "idx": 5,
+      "version": "7",
+      "when": 1784813792772,
+      "tag": "0005_small_the_phantom",
+      "breakpoints": true
     }
   ]
 }

src/databases/officer_db/src/schema/pipeline-jobs.ts

@@ -6,6 +6,8 @@ export const pipelineJobs = pgTable('pipeline_jobs', {
   userId: integer('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
   taskDirName: text('task_dir_name').notNull(),
   taskName: text('task_name').notNull(),
+  // Job kind — pipeline (multi-step agentic), script (single bash/py/ts task), later agentic.
+  mode: text('mode', { enum: ['pipeline', 'script', 'agentic'] }).notNull().default('pipeline'),
   status: text('status', { enum: ['pending', 'running', 'completed', 'failed', 'stopped', 'interrupted'] }).notNull().default('pending'),
   inputs: jsonb('inputs').notNull().default({}),
   cwd: text('cwd'),
@@ -13,6 +15,8 @@ export const pipelineJobs = pgTable('pipeline_jobs', {
   progress: jsonb('progress'),
   totalCost: jsonb('total_cost'),
   error: text('error'),
+  // Script jobs: the process exit code (null until finished / for non-script jobs).
+  exitCode: integer('exit_code'),
   createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
   startedAt: timestamp('started_at', { withTimezone: true }),
   completedAt: timestamp('completed_at', { withTimezone: true }),