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/internal-comms/examples/general-comms.md

@@ -1,16 +1,19 @@
-  ## Instructions
-  You are being asked to write internal company communication that doesn't fit into the standard formats (3P
-  updates, newsletters, or FAQs).
+## Instructions
 
-  Before proceeding:
-  1. Ask the user about their target audience
-  2. Understand the communication's purpose
-  3. Clarify the desired tone (formal, casual, urgent, informational)
-  4. Confirm any specific formatting requirements
+You are being asked to write internal company communication that doesn't fit into the standard formats (3P
+updates, newsletters, or FAQs).
 
-  Use these general principles:
-  - Be clear and concise
-  - Use active voice
-  - Put the most important information first
-  - Include relevant links and references
-  - Match the company's communication style
+Before proceeding:
+
+1. Ask the user about their target audience
+2. Understand the communication's purpose
+3. Clarify the desired tone (formal, casual, urgent, informational)
+4. Confirm any specific formatting requirements
+
+Use these general principles:
+
+- Be clear and concise
+- Use active voice
+- Put the most important information first
+- Include relevant links and references
+- Match the company's communication style