feat: batch SVG render CLI for pose packs

[laurentketterle-hub]

Description

Adds batch SVG render command for pose packs.

Closes #30

What's included

• src/poseguide/svg_render.py: SVG rendering engine for pose packs
• scripts/render_svg.py: CLI entry point
• tests/test_svg_render.py: 7 test cases covering SVG generation, single/multi pose, batch rendering

Usage

python scripts/render_svg.py data/pose-packs/ -o out/svg/

Features

• Renders all poses in a pack to individual SVG files
• Draws joints as colored circles with labels
• Draws bone connections as lines between joints
• Handles single-pose format fallback
• Batch processes all JSON packs in a directory

Claim

I claim this bounty (#30).

[laurentketterle-hub]

/attempt 30

[laurentketterle-hub]

Friendly ping 👋 — this PR has been open for 4 days. Is there anything needed for review? Thanks!

[laurentketterle-hub]

👋 Friendly nudge — this PR has been open for a while. Anything blocking merge, or happy to adjust if review feedback is needed? Thanks!