format: apply repo prettier (3.8.1) to the folded skills tree

963 markdown files reformatted with the repository's pinned prettier so
pnpm format:check covers the folded tree like every other repo file.

The formatter's embedded-language pass also normalized code fences
(TS semicolons, closed HTML tags in examples, lowercased CSS hex colors,
one renumbered list that skipped an index). Alphanumeric token deltas vs
the fold commit were audited file-by-file; all are formatter-equivalent
markup normalizations plus the four sanitized skills.

packages/mosaic/framework/skills/using-git-worktrees/SKILL.md

@@ -62,6 +62,7 @@ git check-ignore -q .worktrees 2>/dev/null || git check-ignore -q worktrees 2>/d
 **If NOT ignored:**
 
 Per Jesse's rule "Fix broken things immediately":
+
 1. Add appropriate line to .gitignore
 2. Commit the change
 3. Proceed with worktree creation
@@ -143,15 +144,15 @@ Ready to implement <feature-name>
 
 ## Quick Reference
 
-| Situation | Action |
-|-----------|--------|
-| `.worktrees/` exists | Use it (verify ignored) |
-| `worktrees/` exists | Use it (verify ignored) |
-| Both exist | Use `.worktrees/` |
-| Neither exists | Check AGENTS.md/SOUL.md/CLAUDE.md → Ask user |
-| Directory not ignored | Add to .gitignore + commit |
-| Tests fail during baseline | Report failures + ask |
-| No package.json/Cargo.toml | Skip dependency install |
+| Situation                  | Action                                       |
+| -------------------------- | -------------------------------------------- |
+| `.worktrees/` exists       | Use it (verify ignored)                      |
+| `worktrees/` exists        | Use it (verify ignored)                      |
+| Both exist                 | Use `.worktrees/`                            |
+| Neither exists             | Check AGENTS.md/SOUL.md/CLAUDE.md → Ask user |
+| Directory not ignored      | Add to .gitignore + commit                   |
+| Tests fail during baseline | Report failures + ask                        |
+| No package.json/Cargo.toml | Skip dependency install                      |
 
 ## Common Mistakes
 
@@ -194,6 +195,7 @@ Ready to implement auth feature
 ## Red Flags
 
 **Never:**
+
 - Create worktree without verifying it's ignored (project-local)
 - Skip baseline test verification
 - Proceed with failing tests without asking
@@ -201,6 +203,7 @@ Ready to implement auth feature
 - Skip AGENTS.md/SOUL.md/CLAUDE.md check
 
 **Always:**
+
 - Follow directory priority: existing > AGENTS.md/SOUL.md/CLAUDE.md > ask
 - Verify directory is ignored for project-local
 - Auto-detect and run project setup
@@ -209,10 +212,12 @@ Ready to implement auth feature
 ## Integration
 
 **Called by:**
+
 - **brainstorming** (Phase 4) - REQUIRED when design is approved and implementation follows
 - **subagent-driven-development** - REQUIRED before executing any tasks
 - **executing-plans** - REQUIRED before executing any tasks
 - Any skill needing isolated workspace
 
 **Pairs with:**
+
 - **finishing-a-development-branch** - REQUIRED for cleanup after work complete