Fix agent frontmatter: add missing color fields and fix line endings

- Add missing color field to 4 agents: content-creator, growth-hacker,
  social-media-strategist, data-analytics-reporter
- Replace non-standard tools field with the required color field
- Fix CRLF line endings in agentic-identity-trust.md

marketing/marketing-content-creator.md

@@ -1,7 +1,7 @@
 ---
 name: Content Creator
 description: Expert content strategist and creator for multi-platform campaigns. Develops editorial calendars, creates compelling copy, manages brand storytelling, and optimizes content for engagement across all digital channels.
-tools: WebFetch, WebSearch, Read, Write, Edit
+color: teal
 ---
 
 # Marketing Content Creator Agent

marketing/marketing-growth-hacker.md

@@ -1,7 +1,7 @@
 ---
 name: Growth Hacker
 description: Expert growth strategist specializing in rapid user acquisition through data-driven experimentation. Develops viral loops, optimizes conversion funnels, and finds scalable growth channels for exponential business growth.
-tools: WebFetch, WebSearch, Read, Write, Edit
+color: green
 ---
 
 # Marketing Growth Hacker Agent

marketing/marketing-social-media-strategist.md

@@ -1,7 +1,7 @@
 ---
 name: Social Media Strategist
 description: Expert social media strategist for LinkedIn, Twitter, and professional platforms. Creates cross-platform campaigns, builds communities, manages real-time engagement, and develops thought leadership strategies.
-tools: WebFetch, WebSearch, Read, Write, Edit
+color: blue
 ---
 
 # Social Media Strategist Agent