Create or obtain sushi icons for Sushi Go! cards

[SorraTheOrc]

Summary

Sushi Go! currently renders cards as colored rectangles with short text labels (e.g. TMP, SSH, MK). This works functionally but lacks visual appeal. Each card type should have a distinctive sushi-themed icon to make cards instantly recognisable and improve the overall game feel.

User Story

As a player, I want each Sushi Go! card type to have a recognisable sushi-themed icon so that I can quickly identify card types at a glance without reading text labels.

Card Types Needing Icons

1. Tempura - two pieces of tempura
2. Sashimi - three pieces of sashimi
3. Dumpling - steaming dumpling
4. Maki Roll - maki roll with 1/2/3 icons variant
5. Nigiri - egg/salmon/squid nigiri variants
6. Wasabi - wasabi blob
7. Pudding - pudding dessert
8. Chopsticks - pair of chopsticks

Requirements

• All assets must be CC0 or permissively licensed (MIT, Apache 2.0, or similar) for commercial use
• Icons should be SVG or high-resolution PNG (at least 128x128)
• Style should be consistent across all card types (same artist/set preferred)
• Icons must be visually distinct at both hand-card size (110x145) and tableau-card size (72x48)
• Attribution must be documented in public/assets/CREDITS.md

Suggested Approach

1. Search for existing CC0/permissive sushi icon sets (OpenGameArt, Kenney, game-icons.net, etc.)
2. If no suitable set exists, consider simple SVG illustrations that can be created or commissioned
3. Place assets in public/assets/sushi-go/
4. Update SushiGoScene.ts to preload and render icons on card rectangles alongside or replacing text labels

Acceptance Criteria

1. Each of the 8 card types has a distinctive icon asset
2. All assets are CC0 or permissively licensed
3. Attribution is recorded in public/assets/CREDITS.md
4. Icons render clearly at both hand and tableau card sizes
5. Icons are integrated into SushiGoScene card rendering
6. All existing Sushi Go tests pass
7. No functional gameplay changes

[SorraTheOrc]

Map

Intake draft created and intake_complete stage set. Draft path: .opencode/tmp/intake-draft-Create-or-obtain-sushi-icons-for-Sushi-Go-CG-0MLVZN6XF0KS4XR4.md

[SorraTheOrc]

OpenCode

Added STYLE.md, sample SVG icon (icon-nigiri-salmon.svg), updated CREDITS.md, and integrated a minimal preload/render path in SushiGoScene.ts. Commit 0febd2f.

[SorraTheOrc]

OpenCode

Added full in-house SVG icon set (12 icons), STYLE.md updated. Commit 0c1d663.

[SorraTheOrc]

OpenCode

Added IconMap.ts, preloaded all known sushi-go icons, and integrated mapping into SushiGoScene.ts. Commit e645bd0.

[SorraTheOrc]

OpenCode

Added tools/export-sushi-icons.js to generate PNG fallbacks. Commit b36ea3b.

[SorraTheOrc]

OpenCode

Centered icons on cards and increased icon footprint so they stay legible when card shapes change. Commit 71b8d56.

[SorraTheOrc]

OpenCode

Restore text labels beneath centered icons and compute tableau card size as scaled hand card to keep aspect ratio consistent. Commit 47df5bc.

[SorraTheOrc]

OpenCode

Fixed label positioning so labels sit above bottom edge with padding (avoid clipping). Commit bc95b01.

[SorraTheOrc]

OpenCode

Merged PR and cleaned up branch and local state. Deleted feature branch wl-CG-0MLVZN6XF0KS4XR4-icons. Rebased/merged main and ran repo cleanup.