[verified] Snake 0.8: circular arena and larger 32px tiles

README.md

@@ -1,10 +1,11 @@
 # SNAKE — Xiaomi Watch S4
 
-Textured Snake on a 16×16 grid: 20px tiles, 320px board, centered on a round
-466px screen. Existing PNG board, directional snake pieces, apple and icon are
-preserved. Package identity: `com.ilias.snake`.
+Textured Snake on a **368px circular arena**, centered on the round 466px
+screen. **32px tiles** (60% larger than 0.7) occupy 89 legal cells of an 11×11
+bounding grid; every tile corner stays inside the actual circle. The square
+board frame is gone. Directional sprite artwork and user icon are preserved. Package identity: `com.ilias.snake`.
 
-**Version 0.7 (versionCode 7): locally tested and release-built; the new features
+**Version 0.8 (versionCode 8): locally tested and release-built; the new features
 still need an on-watch check.** Earlier versions rendered and played on the
 user's Watch S4 41mm. Node tests and numeric layout checks are not device tests.
 
@@ -15,14 +16,15 @@ user's Watch S4 41mm. Node tests and numeric layout checks are not device tests.
   queued direction. Excess inputs are ignored, not allowed to replace a turn.
 - **Tap the board, snake or apple** to pause. Tap **RESUME** (or an exposed part
   of the board) to resume. Pausing clears queued turns.
-- In the pause or game-over panel, select **CLASSIC** (walls end the run) or
-  **WRAP** (cross an edge to appear on the opposite edge). Changing mode starts
+- In the pause or game-over panel, select **CLASSIC** (the circular boundary ends the run) or
+  **WRAP** (cross the circular boundary to appear at the opposite legal end
+  of the **same row or column**). Changing mode starts
   a fresh, paused game; tap RESUME to begin. Selecting the current mode does not
   reset the run. The current mode is shown below the board.
 - Both modes end on self-collision. Moving into the vacating tail is legal.
 - **PLAY AGAIN** is a large 216×56px retry target. Retry keeps the selected mode,
   resets score/speed/queued turns, and starts playing. Filling the board displays
-  **YOU WIN** and hides the apple safely.
+  **YOU WIN** at 89 occupied cells (86 points) and hides the apple safely.
 - Leaving the page pauses it and stops the timer. Returning requires an explicit
   resume; game-over never resumes automatically. The system back action remains
   untouched. No crown, rotary, side-button or back interception APIs are used.
@@ -41,18 +43,24 @@ paused, finished or destroyed. Old timer callbacks are invalidated.
 Storage reads merge with the in-memory maximum; writes wait for the initial
 read and are serialized/coalesced so slow callbacks cannot overwrite a newer
 record. The coordinator survives page recreation within the module lifetime.
-Invalid saved values are ignored. Errors/exceptions do not interrupt gameplay:
+Old 0.7 records through 253 remain valid and are never reduced to the new
+86-point maximum. Invalid saved values are ignored. Errors/exceptions do not interrupt gameplay:
 failed reads/writes retry on later apples or page-show activity, without a retry
 loop. A failed/uncompleted write or immediate app termination may lose the
 unsaved record. Storage persistence still needs verification on the watch.
 
 ## Lightweight rendering
 
-Directional PNG tiles use only `left`/`top` positioning, no transforms or new
-art assets. Wrapped neighbors are normalized before classifying seam textures.
-Food placement takes at most 256 cell checks, including a nearly full board.
-The HUD, footer, board and overlay fit the circular chord numerically with
-at least an 8px total horizontal safety allowance.
+Directional PNG tiles use only `left`/`top` positioning, no transforms. Existing
+20px sprite art is nearest-neighbor enlarged to native 32px assets (crisp pixel
+art, not new high-resolution detail). The board is a newly generated circular
+PNG with transparent corners and a subtle legal-cell checker pattern. Wrapped
+texture connections handle each varying row/column length. All rows/columns
+have at least three cells, avoiding ambiguous one-/two-cell seams.
+Food scans only 89 legal cells, including a nearly full board. HUD/footer
+rectangles never overlap legal play tiles; text/overlay fit the watch chord.
+`tests/preview-0.8-static.png` is a static composition of actual geometry/art,
+with a legal-cell overlay—not a runtime screenshot.
 
 ## Build and test
 
@@ -62,13 +70,13 @@ npm test
 npm run release
 ```
 
-`npm test` runs the original core, piece and page tests, 13 incremental upgrade
+`npm test` runs the original core, piece and page tests, 14 upgrade
 regressions, the numeric layout suite, and deterministic randomized property tests. Upgrade coverage includes rapid
 swipes, lifecycle/timer races, storage failures and async ordering, mode changes,
 all four Wrap edges, seam textures, full-board victory and bounded food spawning.
 New behaviors were exercised through failing-then-passing test cycles.
 
-Release output: `dist/com.ilias.snake.release.0.7.rpk`. The locked
+Release output: `dist/com.ilias.snake.release.0.8.rpk`. The locked
 `aiot-toolkit` 2.0.5 uses the existing `sign/private.pem` and `sign/certificate.pem`;
 do not regenerate or commit those keys. Release uses plain JS (not JSC/protobuf),
 matching the previously working toolchain. The dependency lock is unchanged;
@@ -80,8 +88,8 @@ matching the previously working toolchain. The dependency lock is unchanged;
 - `src/pages/index/index.ux`: round-screen UI, swipe queue, game/lifecycle state.
 - `src/common/snake.js`: movement, collision, Wrap piece classification, food.
 - `src/common/best.js`: asynchronous storage coordinator.
-- `src/common/tex/`: preserved textured artwork.
-- `tests/{snake,pieces,page,upgrade,layout,properties}.cjs`: Node regression suites.
+- `src/common/tex/`: native 32px sprite artwork and circular board.
+- `tests/{snake,pieces,page,upgrade,layout,properties,round,art,round-history}.cjs`: Node regression suites, including history-based circular seam orientation checks.
 
 Install the signed RPK through AstroBox. Source/releases live at
 https://gitea.oimcloud.myaddr.tools/codex-bot/vela-snake — publication is a