feat: initial scaffold of agent_runner_api service Go :8486

migrations/001_workflows.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS workflows (
+    id              TEXT PRIMARY KEY,
+    name            TEXT NOT NULL,
+    prompt_template TEXT NOT NULL DEFAULT '',
+    dod_schema_json TEXT NOT NULL DEFAULT '[]',
+    created_at      INTEGER NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_workflows_name ON workflows(name);