## Plan

**File to modify:** `devplacepy/database/schema.py`  
**Function:** `migrate_ai_gateway_settings()` (lines 1191–1212)  
**Action:** Insert one `if` block after the `gateway_vision_key` migration (after line 1205 in the current file).  

**Exact code to add:**

```python
if not get_setting("gateway_embed_key", "") and openrouter:
    set_setting("gateway_embed_key", openrouter)
    logger.info("Migrated gateway embed key from environment")
```

**Rationale:**  
`gateway_api_key` and `gateway_vision_key` are already migrated from the environment on first boot. This adds the same treatment for `gateway_embed_key`. The runtime fallback chain in `effective_config()` remains untouched and will continue to work as before for any case where the key is still empty.

---

## Definition of Done

- [ ] The change is applied to `devplacepy/database/schema.py` – the new `if` block is present immediately after the `gateway_vision_key` migration.
- [ ] Project test command succeeds:  
  ```
  pip install -e '.[dev]' -q --break-system-packages && make test-unit
  ```
  (The `--break-system-packages` flag is a workaround for the current environment’s PEP 668 restriction. In a normal environment with a virtual environment, omit that flag.)
- [ ] Project lint command succeeds:  
  ```
  pip install -q ruff --break-system-packages && ruff check .
  ```
- [ ] Manual verification (optional but recommended):  
  Set `OPENROUTER_API_KEY=sk-test` in the environment, import and run `migrate_ai_gateway_settings()`, then confirm `get_setting("gateway_embed_key")` returns `"sk-test"`.