feat(render): integrate 'Add to encoderCraft Queue' composition export via IPC #2816

Summary

Add an "Add to encoderCraft Queue..." command to EffectCraft's Composition and Render Queue menus (parity with Adobe After Effects "Composition > Add to Adobe Media Encoder Queue..."). This delegates heavy motion graphics and VFX renders to the background encoderCraft daemon.

Workflow & UI Requirements

1. Menu Item & Shortcut:
   • Add Composition > Add to encoderCraft Queue... (shortcut: Ctrl+Alt+M / Cmd+Option+M).
   • Add button inside Render Queue panel: "Queue in encoderCraft".
2. IPC Integration:
   • Connect to local encoderCraft daemon via Unix domain socket (/tmp/encodercraft-$UID.sock) or localhost TCP socket (127.0.0.1:8998).
   • Auto-spawn daemon if not running.
3. Job Payload:
   • Submit JSON-RPC payload with:
     • Composition ID, resolution, work area in/out markers.
     • Selected render settings template and output module.
     • Alpha channel mode (Straight / Premultiplied) and color profile.
4. Dynamic Rendering:
   • encoderCraft invokes headless render-worker or renders intermediate raw frame streams via shared memory ring buffer.

Tracking & Cross-Links

• Target Parity: Adobe After Effects -> Adobe Media Encoder dynamic queue link
• encoderCraft Master Tracking Issue: el-j/encoderCraft#1
• encoderCraft Repository: el-j/encoderCraft
• Shared Dispatch Protocol: storytold/craft-libs#505
• Shared Media Codecs: storytold/craft-libs#503 / storytold/craft-libs#504
• EffectCraft Codec Migration PR: storytold/effectcraft#2814