fix: feat: make gardener and architect schedules configurable via env vars (#558)

lib/generators.sh

@@ -90,6 +90,8 @@ _generate_local_model_services() {
       WOODPECKER_DATA_DIR: /woodpecker-data
       FORGE_BOT_USER_${service_name^^}: "${forge_user}"
       POLL_INTERVAL: "${poll_interval_val}"
+      GARDENER_INTERVAL: \${GARDENER_INTERVAL:-21600}
+      ARCHITECT_INTERVAL: \${ARCHITECT_INTERVAL:-21600}
     depends_on:
       - forgejo
       - woodpecker
@@ -290,6 +292,8 @@ services:
       DISINTO_CONTAINER: "1"
       PROJECT_REPO_ROOT: /home/agent/repos/${PROJECT_NAME:-project}
       WOODPECKER_DATA_DIR: /woodpecker-data
+      GARDENER_INTERVAL: ${GARDENER_INTERVAL:-21600}
+      ARCHITECT_INTERVAL: ${ARCHITECT_INTERVAL:-21600}
     # IMPORTANT: agents get explicit environment variables (forge tokens, CI tokens, config).
     # Vault-only secrets (GITHUB_TOKEN, CLAWHUB_TOKEN, deploy keys) live in
     # .env.vault.enc and are NEVER injected here — only the runner