* feat: add meme-generation skill
* Reduce meme skill prompt cost with tighter selection rules
* feat(skill): overhaul meme-generation into real image generator
Move from skills/creative/ to optional-skills/creative/ (niche skill,
not needed by default). Replace prompt-only meme concept brainstormer
with actual meme image generation:
- Python script using Pillow to overlay text on template images
- 10 curated templates with hand-tuned text positioning
- Dynamic access to ~100 popular imgflip templates via public API
- Custom image mode (--image): use AI-generated or any image as base
- Two text modes: overlay (white+outline on image) or bars (black bars)
- Vision verification workflow: use vision_analyze to QA the result
- Auto-scaling font with pixel-accurate word wrapping
- Template search via --search
- No API keys required
Original skill concept by adanaleycio (PR #1771), overhauled with
image generation and custom image support.
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Co-authored-by: adanaleycio <atillababa767@gmail.com>