fix(skills): force figma.com sources through /figma, not raw MCP tools

Two real incidents this week had agents skip /figma entirely and drive
Figma via raw MCP tools (get_metadata/get_screenshot/get_design_context)
when a figma.com URL landed inside a creation-workflow skill. Root cause:
none of the creation workflows mention Figma at all, and the only routing
table that does (/hyperframes) is skipped whenever a workflow is invoked
directly rather than through the entry router — which is the common path.

Going raw loses real infrastructure the CLI/skill guarantees: sanitizeSvg()
before freezing (raw-fetched SVGs are unsanitized), .media/manifest.jsonl
provenance (no cache-hit, no version tracking), and brand-token var()
binding (colors bake as literals, so a later Figma brand change can't
propagate without a full re-import).

Added a "figma source" callout to every creation workflow that could
plausibly receive a figma.com link (product-launch-video, website-to-video,
general-video, motion-graphics, slideshow), plus a defense-in-depth line
in /hyperframes's own routing checklist. The fix lives in the workflows
themselves so it doesn't depend on the entry router being consulted.

Co-Authored-By: Claude Opus <noreply@anthropic.com>

skills/general-video/SKILL.md

@@ -12,6 +12,8 @@ metadata: { "tags": "orchestrator, general-video, fallback, freeform, compositio
 
 > **media-use**: Before sourcing audio/images/logos, call `/media-use` to resolve BGM/SFX/images from the HeyGen catalog and brand logos from their official sources. Run `--adopt` first to register existing assets. See `/media-use` skill.
 
+> **figma source**: If any input is a figma.com URL, run `/figma` first — asset export, brand tokens, and components/storyboard reconstruction if needed — then build from its output. Don't drive Figma via raw MCP tools directly: that skips SVG sanitization, `.media/manifest.jsonl` provenance, and brand-token `var()` binding, so a later brand change can't propagate without a full re-import.
+
 # general-video — general video workflow
 
 > **Confirm the route before you build.** This is the **fallback** for custom composition authoring. If the input clearly fits a specialized workflow, prefer it: marketed product → `/product-launch-video`; general site → `/website-to-video`; topic explainer → `/faceless-explainer`; GitHub PR → `/pr-to-video`; existing footage → `/embedded-captions` · `/talking-head-recut`; short unnarrated motion graphic → `/motion-graphics`; Remotion port → `/remotion-to-hyperframes`. **Out of scope**: live / at-render-time data, NLE-style editing of a finished video, or producing footage HyperFrames can't capture. Unsure? **Read `/hyperframes` first.**