docs: update copilot instructions and getting-started for IoT + init-remote

- Add IoT section to copilot-instructions (drivers/, Protocol pattern, mock fixtures, deploy recipe)
- Update getting-started Next steps to reference `just init-remote` instead of manual Pages setup
- Add device.yaml setup step when use_iot=true

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

Author: namitdeb739-aug

template/.github/copilot-instructions.md.jinja

@@ -58,6 +58,9 @@ uv add --dev <package>     # dev/test dependency
 {%- if use_ml %}
 uv add --optional ml <package>  # optional ML extras
 {%- endif %}
+{%- if use_iot %}
+uv add --optional iot <package> # optional IoT extras
+{%- endif %}
 ```
 
 Always commit `uv.lock` after adding dependencies.
@@ -104,6 +107,22 @@ Always commit `uv.lock` after adding dependencies.
 - Release process and versioning details: `docs/releasing.md`
 {% endif %}
 
+{% if use_iot %}
+## IoT / Embedded Development
+
+- **Drivers live in** `src/{{ package_name }}/drivers/` — serial (`serial.py`), GPIO (`gpio.py`), MQTT (`mqtt.py`)
+- **Device config**: `config/device.yaml` (gitignored) — copy from `config/device.yaml.example`
+- **Abstractions**: all hardware access goes through `typing.Protocol` interfaces — never import `serial`/`gpiozero`/`paho` directly in business logic
+- **Testing without hardware**: use `mock_serial` and `mock_gpio` fixtures from `tests/conftest.py` (autouse for GPIO); MQTT tests require a local Mosquitto broker or skip gracefully
+
+```bash
+just deploy <host>   # rsync src/ + restart systemd service (or docker pull + compose up if use_docker)
+```
+
+- **paho-mqtt**: import as `paho.mqtt.client` and always construct with `CallbackAPIVersion.VERSION2` (paho 2.x+)
+- **GPIO**: use `gpiozero` — `Device.pin_factory = MockFactory()` in test fixtures for CI-safe testing
+{% endif %}
+
 ## What NOT to Do
 
 - Do not bypass `uv` with `pip install` — always use `uv add` or `uv run`

template/docs/getting-started.md.jinja

@@ -104,10 +104,15 @@ Docstrings are auto-rendered as [API documentation](api.md) by mkdocstrings.
 ## Next steps
 
 - Add your runtime dependencies to `pyproject.toml`
-{%- if use_docs %}
+{%- if ci_github %}
+- Run `just init-remote` to create the GitHub repo, push, configure branch protection{% if use_docs %}, and enable Pages{% endif %}
+{%- elif use_docs %}
 - Enable [GitHub Pages](https://docs.github.com/en/pages) for documentation hosting
 {%- endif %}
 {%- if testing != 'minimal' %}
 - Connect [Codecov](https://codecov.io/) for PR coverage reports
 {%- endif %}
+{%- if use_iot %}
+- Copy `config/device.yaml.example` to `config/device.yaml` and fill in your device addresses
+{%- endif %}
 - See [Contributing](contributing.md) for the full development guide