dangernoodle-io / breadboard / 25346527234

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feat(bb_led): parent + bb_led_gpio driver (Phase A) (#198)

* feat(bb_led): parent component with capability-aware dispatch (B1-169)

* feat(bb_led_gpio): single-GPIO digital LED driver (B1-170)

Add bb_led_gpio backend driver for controlling a digital output pin as an LED.
Supports active-high (normal) and active-low (inverted) logic.

Implementations:
- esp-idf: configures GPIO via gpio_config_t and gpio_set_level
- arduino: uses pinMode and digitalWrite
- host: mock with bb_led_gpio_host_get_level() test helper

Component includes header, CMakeLists.txt, and test suite (7 tests).
Wired into platformio.ini and native_scaffold.py for test builds.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* feat(smoke): exercise bb_led + bb_led_gpio across smoke envs

Wire bb_led and bb_led_gpio into the smoke environment for compile-only coverage. ESP-IDF smoke app calls bb_led_gpio_open with GPIO 2 (safe on all targets) and confirms the dispatch path. Arduino smoke path includes header and source via platformio.ini build filters.

- CMakeLists.txt: add bb_led + bb_led_gpio to SMOKE_REQUIRES
- smoke_app.c: add bb_led_gpio_open/set_on/close test call post-boot
- platformio.ini: add include paths and platform/arduino build filters for both components

Tested ESP32 WROOM-32 (esp32 env) and Arduino UNO CC3000 (uno_cc3000 env); both pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

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