Add reusable map and device chat templates

[mysvip]

What changed

• add a reusable 2D globe route journey template
• add Mac terminal typewriter and muted-silver iPhone device-frame templates
• add desktop and mobile WeChat conversation templates with configurable copy and deterministic timelines
• include five rendered sample previews and register all templates in the catalog
• support direct template selection through the ?template= query parameter
• make the root render script reliable on Windows by using a variables file and the bundled npm CLI path

Why

These animations were previously isolated experiments. This change turns the approved designs into searchable, parameterized HyperFrames templates that can be previewed and rendered independently.

Validation

• npm run check — catalog validation passed with 25 templates
• each new template passed HyperFrames lint, browser validation, and layout inspection
• all five sample videos were rendered and visually checked with contact sheets
• git diff --cached --check passed before commit