Free memory on the CYD and drop the old manual profile (0.2.50)

The CYD restarted under load: a slider fill rounded less than its track made
LVGL draw the fill into a buffer of its own size on every redraw (15-20 KB), and
when that allocation failed the refresh retried until the task watchdog fired.
Track and fill now share one radius, and tests/test_layer_free.py keeps every
layer-making style out of the profiles, the packages and the firmware headers.

A tile keeps only the fields every card uses; climate modes, select options,
weather, sun and timer times, the media title and the vacuum rows moved to an
Extra block that exists only while a state needs one, and the state copy became
a fingerprint. runtime_tiles::model went from 24,296 to 8,216 bytes.

The manual profile that bound tiles to fixed entities in the YAML is gone:
331 TILE* substitutions, DYNAMIC_TILES/TILE_COUNT/DIRECT_ACTIONS, the 80 Home
Assistant subscriptions, its tap handlers and scripts, its own vacuum card, its
guides and helper scripts, and the five stale header copies in the repository
root that two C++ tests were compiling instead of the components. esphome config
of both Easy profiles is unchanged by that cleanup.

tile_scroll and the wake overlay no longer light up on a tap, and the debug
sensor min_free reports the lowest free heap since boot. On the bench CYD static
RAM went from 32.0% to 22.8% and free heap from 64-77 KB to about 101 KB, with
78 KB as the lowest point over thirteen hours without a restart.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/RELEASING.md

@@ -21,10 +21,10 @@
 1. Update the source profiles and shared components. Run
    `python3 tools/generate_packages.py`; never edit `packages/*.yaml` directly.
 2. Run all Python tests with aiohttp installed, all `tests/*.cpp`, the
-   generator with `--check`, and compile both Easy Setup profiles plus the
-   existing manual profiles. Do that sequentially: profiles with the same
-   `DEVICE_NAME` share one build folder, and a parallel build can make an upload
-   pick the wrong `firmware.bin`. Check that no secrets are in Git.
+   generator with `--check`, and compile both Easy Setup profiles. Do that
+   sequentially: profiles with the same `DEVICE_NAME` share one build folder, and a
+   parallel build can make an upload pick the wrong `firmware.bin`. Check that no
+   secrets are in Git.
 3. Test app start, saving, restarting/updating with existing layouts,
    reconnecting to HA, and an ESP restart. Test a new card on real
    hardware. A good build doesn't replace physical touch acceptance.
@@ -176,6 +176,52 @@ icons sit off-center in the browser); run `generate_packages.py` afterward.
 The `MDI_GLYPH_*` substitutions are retired: `TILEn_ICON` in manual
 profiles must come from the set. No changed preferences or keys.
 
+### Compatibility 0.2.50 / firmware 0.2.43
+
+Firmware, board profiles and the package generator; the app only raises `FIRMWARE_VERSION`. Storage,
+protocol, preferences and keys are unchanged.
+
+- Slider fills: `runtime_tiles::slider_handle` and the light card rows in `light_controls.h` give
+  `LV_PART_INDICATOR` the track's radius (`height * 12 / 42`, round at 20 px or less). A smaller fill
+  radius makes LVGL 9.5's `lv_bar` draw the fill into an ARGB8888 layer of its own size on every redraw
+  and clip it to the track (a 128×30 fill: 15 KB). When that allocation failed, the refresh retried until
+  the task watchdog reset the CYD (log: `lv_draw_buf_create_ex: No memory: 115x30, cf: 16`).
+  `tests/test_layer_free.py` rejects layer styles (`opa_layered`, transform rotation/scale/skew, blend
+  mode, bitmap masks, `clip_corner`, drop shadow, blur) and a fill radius that differs from its track in
+  both profiles, both packages and the firmware headers. `opa` itself makes no layer in LVGL 9.5.
+- `runtime_model.h`: `Tile` keeps the shared fields inline. `Extra` holds climate modes and action, select
+  options, forecast/hours/wind/feels, sunrise/sunset/timer, media title, vacuum speeds, choices, room and
+  charging. It lives on the heap only while a state message fills something in (`Tile::set_extra`,
+  `extra()`, `edit_extra()`, `extra_ptr()`). `options` and `fan_speeds` are vectors (no
+  `option_count`/`fan_speed_count`), and `history` holds 24 samples or none. `revision`/`pending_revision`
+  are FNV-1a fingerprints (`Fingerprint`, also an ArduinoJson writer) instead of copies of state,
+  attributes and extras. On the ESP32 `runtime_tiles::model` shrinks from 24,296 to 8,216 bytes.
+- The old manual profile is gone from both board profiles: the 80 `homeassistant` sensor and text
+  sensors of the fixed tiles, `smartdisplay_action`, the tile tap and long-press handlers,
+  `publish_action`, `do_tile_action`, the manual refresh in `ui_refresh`, the YAML vacuum card with
+  `open_vacuum_overlay`/`vacuum_action`/`vacuum_fan_speed`, `light_controls::subscribe`, the 331
+  `TILE*` substitutions, and `DYNAMIC_TILES`/`TILE_COUNT`/`DIRECT_ACTIONS`/`TIME_24H`/`ORIENTATION`.
+  `runtime_tiles::enabled` is set true at boot and the `DIRECT_ACTIONS` guards became
+  `runtime_tiles::fresh()`. The runtime detail hook lost its unreachable vacuum branch. Deleted:
+  `device.example.yaml`, `guition-device.example.yaml`, `tools/new_device.py`, `tools/export_bundle.py`,
+  `TILE_CONFIGURATION.md`, `docs/TILES.md`, `docs/ACCEPTANCE.md`, `CYD_STABILITY.md`, `TEST_RESULTS.md`,
+  and the five stale header copies in the repository root (`cyd_ui.h`, `light_controls.h`,
+  `alert_overlay.h`, `backlight_fade.h`, `guition_diagnostics.h`) that had drifted from
+  `components/smart_display/`; `tests/test_cyd_ui.cpp` and `tests/test_light_controls.cpp` were
+  compiling those copies and now include the component headers, as both profiles do.
+  `tools/generate_packages.py` no longer strips or substitutes anything for the manual profile: the
+  board profile's own defaults are the package's, and a `homeassistant` sensor in a profile is refused.
+  The entity "SmartDisplay Action" disappears from every screen. The USB touch calibration
+  (`tools/calibrate.py`, `docs/CALIBRATING.md`, `calibration.example.yaml`, `CALIBRATION_ON_BOOT`,
+  the measurement page) and the on-screen calibration are unchanged.
+- `esphome config` of both Easy profiles is byte-identical before and after this cleanup, apart from
+  two reordered lines: the firmware does the same thing, with the same calibration.
+- `tile_scroll` and `dim_wake_overlay` (and the manual vacuum rows) get `pressed: bg_opa: TRANSP`. The
+  theme's obj pressed style (`bg_opa` 45%) lit up the transparent area on a tap between tiles and on the
+  wake tap.
+- Both profiles add the debug sensor `min_free` ("Heap Minimum Free":
+  `heap_caps_get_minimum_free_size(MALLOC_CAP_INTERNAL)`, every 300 s).
+
 ### Compatibility 0.2.49 / firmware 0.2.42
 
 Firmware and the CYD board profile; the app only raises `FIRMWARE_VERSION`. Storage, protocol,