prepare WS DDP for ESP8266 compatibility, fix compiler warnings in pacman FX, remove omggif.js for ESP8266

[DedeHai]

• use smaller packet size in WS DDP send on ESP8266 so sending does not fail
• fix the flooding warnings in PacMan
• remove omggif.js from ESP8266 builds as it is not useable (no image support) - accommodated with fixes in pixelforge, this saves roughly 2.5k of flash.

note: pixelpaint and videolab tools will get an update too

Summary by CodeRabbit

• Bug Fixes
  • Improved Pac‑Man effect stability by hardening position math and preventing out-of-range LED indexing, including stricter ghost/power-dot state handling.
  • Enhanced reset behavior when blue ghosts return to the start for more consistent gameplay.
  • Fixed DDP WebSocket streaming chunk sizing for ESP8266 devices to improve update reliability.
• UI Improvements
  • Updated PixelForge image/segment tab behavior to better handle ESP8266 limitations, including conditional resource loading and clearer availability messaging.
• Compatibility
  • GIF-related assets are now only served when GIF support is enabled.

[coderabbitai]

Walkthrough

The PR hardens PacMan position handling, adds ESP8266-specific DDP chunk sizing, and updates PixelForge resource loading, image-tab behavior, and GIF route compilation for ESP8266 and GIF support configurations.

Changes

PacMan type handling

Layer / File(s)	Summary
PacMan state and initialization wled00/FX.cpp	PacMan positions, power-dot counts, allocation sizes, and initialization loops use explicit signed and unsigned integer types.
PacMan update and rendering wled00/FX.cpp	Update, blinking, reset, movement, and drawing logic uses explicit loop types and unsigned bounds checks for positions.

ESP8266 PixelForge support

Layer / File(s)	Summary
ESP8266 capability and PixelForge UI wled00/data/pixelforge/pixelforge.htm	PixelForge detects ESP8266 targets, conditionally loads GIF resources, and displays an unavailable image-tool notice on ESP8266.
Conditional GIF asset route wled00/wled_server.cpp	The GIF asset include, route, and HTTP handler are compiled only when GIF support is enabled.

DDP chunk sizing

Layer / File(s)	Summary
ESP8266 DDP frame limit wled00/data/common.js	sendDDP accepts an optional ESP8266 flag and selects a 172- or 472-pixel payload limit.

Estimated code review effort: 4 (Complex) | ~45 minutes

Sequence Diagram(s)

sequenceDiagram
  participant PixelForge
  participant fsMem
  participant ResourceLoader
  participant ImageTab
  PixelForge->>fsMem: detect device architecture
  fsMem-->>PixelForge: set is8266
  PixelForge->>ResourceLoader: conditionally load omggif.js
  PixelForge->>ImageTab: show image content or ESP8266 notice

Loading

Possibly related PRs

• wled/WLED#4891: Both PRs modify the PacMan effect’s position and ghost/power-dot state handling.
• wled/WLED#4982: Both PRs modify PixelForge and omggif.js integration.
• wled/WLED#4997: Both PRs modify the sendDDP WebSocket streaming path.

Suggested labels: connectivity, effect, enhancement

Suggested reviewers: netmindz

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the main changes: ESP8266 DDP compatibility, Pacman warning fixes, and disabling omggif.js on ESP8266.

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