Adding notes about factory-animations

[nonlinearnishu]

Moves the local 8fbc8f5 commit off main (protected) onto a branch.

What

Adds notes about factory-animations.

🤖 Generated with Claude Code

[github-actions]

🏭 Factory conformance — ✅ Pass

This PR: ✅ no new criticals

Severity	Repo	This PR
Critical	0	0
High	0	0
Medium	0	0
Low	0	0

Coverage: 6/48 pitfalls machine-checked (13%).

⚠️ 5 critical-class pitfalls are not machine-checked — a passing grade does not clear them: untested-rollback-shipped-to-prod, prod-destructive-write-no-layer-c-snapshot, llm-auto-runs-runbook-commands, phi-in-email-no-baa-check, ai-generated-code-no-review-queue.