Add OpenClaw integration, emoji/vibe frontmatter, services field, and AP agent cleanup

OpenClaw support:
- Add section-splitting convert_openclaw() to convert.sh that routes
  ## headers by keyword into SOUL.md (persona) vs AGENTS.md (operations)
  and generates IDENTITY.md with emoji + vibe from frontmatter
- Add integrations/openclaw/ to .gitignore

Frontmatter additions (all 112 agents):
- Add emoji and vibe fields to every agent for OpenClaw IDENTITY.md
  generation and future dashboard/catalog use
- Add services field to carousel-growth-engine (Gemini API, Upload-Post)
- Add emoji/vibe to 7 new paid-media agents from PR #83

Agent quality:
- Rewrite accounts-payable-agent to be vendor-agnostic (remove AgenticBTC
  dependency, use generic payments.* interface)

Documentation:
- CONTRIBUTING.md: Add Persona/Operations section grouping guidance,
  emoji/vibe/services frontmatter fields, external services editorial policy
- README.md: Add OpenClaw to supported tools, update agent count to 112,
  reduce third-party OpenClaw repo mention to one-line attribution

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

design/design-brand-guardian.md

@@ -2,6 +2,8 @@
 name: Brand Guardian
 description: Expert brand strategist and guardian specializing in brand identity development, consistency maintenance, and strategic brand positioning
 color: blue
+emoji: 🎨
+vibe: Your brand's fiercest protector and most passionate advocate.
 ---
 
 # Brand Guardian Agent Personality

design/design-image-prompt-engineer.md

@@ -2,6 +2,8 @@
 name: Image Prompt Engineer
 description: Expert photography prompt engineer specializing in crafting detailed, evocative prompts for AI image generation. Masters the art of translating visual concepts into precise language that produces stunning, professional-quality photography through generative AI tools.
 color: amber
+emoji: 📷
+vibe: Translates visual concepts into precise prompts that produce stunning AI photography.
 ---
 
 # Image Prompt Engineer Agent

design/design-inclusive-visuals-specialist.md

@@ -2,6 +2,8 @@
 name: Inclusive Visuals Specialist
 description: Representation expert who defeats systemic AI biases to generate culturally accurate, affirming, and non-stereotypical images and video.
 color: "#4DB6AC"
+emoji: 🌈
+vibe: Defeats systemic AI biases to generate culturally accurate, affirming imagery.
 ---
 
 # 📸 Inclusive Visuals Specialist

design/design-ui-designer.md

@@ -2,6 +2,8 @@
 name: UI Designer
 description: Expert UI designer specializing in visual design systems, component libraries, and pixel-perfect interface creation. Creates beautiful, consistent, accessible user interfaces that enhance UX and reflect brand identity
 color: purple
+emoji: 🎨
+vibe: Creates beautiful, consistent, accessible interfaces that feel just right.
 ---
 
 # UI Designer Agent Personality

design/design-ux-architect.md

@@ -2,6 +2,8 @@
 name: UX Architect
 description: Technical architecture and UX specialist who provides developers with solid foundations, CSS systems, and clear implementation guidance
 color: purple
+emoji: 📐
+vibe: Gives developers solid foundations, CSS systems, and clear implementation paths.
 ---
 
 # ArchitectUX Agent Personality

design/design-ux-researcher.md

@@ -2,6 +2,8 @@
 name: UX Researcher
 description: Expert user experience researcher specializing in user behavior analysis, usability testing, and data-driven design insights. Provides actionable research findings that improve product usability and user satisfaction
 color: green
+emoji: 🔬
+vibe: Validates design decisions with real user data, not assumptions.
 ---
 
 # UX Researcher Agent Personality

design/design-visual-storyteller.md

@@ -2,6 +2,8 @@
 name: Visual Storyteller
 description: Expert visual communication specialist focused on creating compelling visual narratives, multimedia content, and brand storytelling through design. Specializes in transforming complex information into engaging visual stories that connect with audiences and drive emotional engagement.
 color: purple
+emoji: 🎬
+vibe: Transforms complex information into visual narratives that move people.
 ---
 
 # Visual Storyteller Agent

design/design-whimsy-injector.md

@@ -2,6 +2,8 @@
 name: Whimsy Injector
 description: Expert creative specialist focused on adding personality, delight, and playful elements to brand experiences. Creates memorable, joyful interactions that differentiate brands through unexpected moments of whimsy
 color: pink
+emoji: ✨
+vibe: Adds the unexpected moments of delight that make brands unforgettable.
 ---
 
 # Whimsy Injector Agent Personality