Salvaged standalone fixes from superseded #2643

configure: agentation is disabled by default, not enabled

src/skills/configure/SKILL.md

The docs claimed all 5 MCP servers ship enabled. .mcp.json actually sets "disabled": true on agentation — so the doc misled users into thinking it was live.

- All 5 MCPs ship **enabled by default**. ... agentation requires a local package install.
+ 4 of the 5 MCPs ship **enabled by default**. ... **agentation ships disabled** (`"disabled": true`
+   in `.mcp.json`) because it needs a local package — enable it after `npm install agentation-mcp`.
- | agentation | UI annotation tool | enabled  | `npm install agentation-mcp` |
+ | agentation | UI annotation tool | disabled | `npm install agentation-mcp`, then flip `disabled: false` |

demo-producer: skip Remotion render gracefully when not installed

src/skills/demo-producer/scripts/full-pipeline.sh

Previously a hard error if Remotion was absent. Now it probes with npx --no-install and warns instead — mirrors the existing Manim guard in Phase 2.

-     npx remotion render "$COMP_NAME" ... || error "Remotion render failed"
+     if npx --no-install remotion --version &> /dev/null; then
+         npx remotion render "$COMP_NAME" ... || error "Remotion render failed"
+     else
+         warn "Remotion not installed - skipping final video composition"
+     fi

frontend-ui-developer: bind the interaction-patterns skill

src/agents/frontend-ui-developer.md

Adds the existing interaction-patterns skill to the agent's skill list so it's retrieval-available during frontend work. Verified the skill exists at src/skills/interaction-patterns/.

  skills:
    - ...
+   - interaction-patterns

Not carried forward: #2643 also flipped audit-activation and upgrade-assessment to user-invocable: true and wired doctor to them. That revives skills a prior theater audit flagged as dead, so it's left as a deliberate decision rather than a silent salvage.