ELLOS Desktop Pro - Rebuild Core V21F Camera Interactive FX

Ti prostethike:
- Neo Camera Interactive FX panel sto Inspector.
- Emfanizetai mono otan to selected layer paizei live camera source.
- 4 safe camera-only toggles:
  1. Mirror
  2. Mono
  3. Boost
  4. Invert
- Reset Camera FX gia grigori epistrofi.
- Ta camera FX den peirazoun ta ypoloipa videos sto layer / project.
- To stage preview kai to layer preview monitor deixnoun kai ta camera FX.
- To save/load JSON kratise kai ta camera FX metadata gia oso yparxei antistoixo live camera source sto session.

Ti den peiraxtike:
- Playback core
- Mapping
- P1 / P2 / P3 / P4 / P5
- Layer media services flow

Syntax check:
- app.js passed: node --check app.js

Roadmap pou kratietai:
1. Per-video FX (oxi layer-wide)
2. Professional project save/load polish
3. Epipleon camera interactive εργαλεία an xreiastei
