feat: add D.intelligence Agent Corps (9 skills + shared infra)

Add 9 agent skills (#70-#77, #88) for D.intelligence business operations:
brand guardian, brand editor, doc secretary, quotation manager, service
architect, marketing manager, back office manager, account manager, and
skill update meta-agent. Includes shared Python package (dintel), reference
docs, document/quotation templates, service module CSVs, cross-device
installer, and comprehensive user guide.

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

custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Blank_2026.txt

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+D.intelligence
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+[Document Title]
+[Subtitle or Description]
+Date:  2026.  .  .
+Author:  D.intelligence
+Version:  1.0
+[Section Title]
+Start writing your content here. This is the D.intelligence standard blank document template for 2026.
+[Subsection Title]
+Continue adding your content under subsections as needed.
+First bullet point
+Second bullet point
+Third bullet point

custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Digital_Marketing_Audit_2026.txt

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+Digital Marketing Audit
+디지털 마케팅 감사 보고서
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+Client:  [Client Name]
+Audit Period:  2026.  .   – 2026.  .  
+Consultant:  D.intelligence
+Prepared by:  Andrew Yim
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+D.intelligence DMA v2026.1
+1. Executive Summary
+[Provide a high-level overview of the digital marketing audit findings. Include key metrics, overall assessment, and top 3-5 priority recommendations.]
+Audit Scope
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+2. Brand Visibility & Search Presence
+2.1 Search Engine Visibility
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+2.2 Social Media Presence
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+3. SEO Audit
+3.1 Technical SEO
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+3.2 On-page SEO
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+3.3 Content Strategy
+[Content gap analysis, E-E-A-T assessment, competitor content comparison, and content calendar recommendations.]
+4. Paid Media Audit
+4.1 Google Ads
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+4.2 Meta Ads
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+5. Analytics & Measurement
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+6. Competitor Analysis
+[Competitor digital marketing benchmarking across organic search, paid media, social media, and content strategy.]
+7. Strategic Recommendations
+7.1 Quick Wins (0–1 Month)
+[Immediate optimizations with high impact and low effort.]
+7.2 Medium-term Initiatives (1–3 Months)
+[Strategic improvements requiring planning and execution.]
+7.3 Long-term Strategy (3–6 Months)
+[Transformative initiatives for sustained growth.]
+8. Next Steps & Engagement Options
+[Proposed engagement model, timeline, investment, and expected outcomes.]

custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Initial_Brief_2026.txt

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+Initial Brief
+사전 업무 준비 브리프
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+Client:  [Client Name]
+Project:  [Project Name]
+Date:  2026.  .  .
+Prepared by:  D.intelligence
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+D.intelligence Initial Brief v2026.1
+1. Client Overview
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+Business Context
+[Brief description of the client business, market position, and current situation.]
+2. Project Background
+Why now?
+[What triggered this project? Business need, market change, competitive pressure, etc.]
+Current Challenges
+[Key pain points and challenges the client is facing.]
+3. Project Objectives
+Business Objectives
+[Primary business goal]
+[Secondary business goal]
+KPIs & Success Metrics
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+4. Target Audience
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+5. Scope of Work
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+6. Budget & Timeline
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+7. Constraints & Dependencies
+Constraints
+[Budget, timeline, technical, regulatory, or other constraints.]
+Dependencies
+[What needs to be provided by the client or third parties before work can begin.]
+8. Competitive Landscape
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+9. Next Steps
+

custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Marketing_Performance_2026.txt

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+마케팅 퍼포먼스 분석 컨설팅
+Marketing Performance Analysis & Consulting
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+Client:  [Client Name]
+Period:  2026.  .   – 2026.  .  
+Consultant:  D.intelligence
+
+D.intelligence Marketing Perf. v2026.1
+1. 요약 (Executive Summary)
+[분석 기간의 주요 성과 지표, 핵심 발견사항, 전략적 제안을 요약합니다.]
+주요 성과 지표 (Key Metrics)
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+2. 채널별 성과 분석
+2.1 Organic Search (SEO)
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+2.2 Paid Search (SEM)
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+2.3 Social Media
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+2.4 Display & Video Ads
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+3. 전환 퍼널 분석 (Conversion Funnel)
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+4. 핵심 인사이트 (Key Insights)
+성과 요인 (What worked)
+[성과가 좋았던 캠페인, 채널, 콘텐츠와 그 이유를 분석합니다.]
+개선 영역 (Areas for improvement)
+[성과가 부진했던 영역과 근본 원인을 분석합니다.]
+5. 전략적 제안 (Strategic Recommendations)
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+6. 다음 달 계획 (Next Month Plan)
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custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Social_Media_Excellence_2026.txt

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+Social Media Excellence
+소셜 미디어 역량 평가 및 전략 보고서
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+Client:  [Client Name]
+Assessment Period:  2026.  .   – 2026.  .  
+Consultant:  D.intelligence
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+D.intelligence Social Media Excellence v2026.1
+1. Executive Summary
+[Overall assessment of social media maturity, key strengths, and priority improvement areas.]
+Social Media Maturity Score
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+2. Platform-by-Platform Analysis
+2.1 Instagram
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+2.2 YouTube
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+2.3 Blog / Website Content
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+2.4 Other Platforms
+[Facebook, LinkedIn, X(Twitter), TikTok, Naver Blog, KakaoTalk Channel, etc.]
+3. Content Strategy Assessment
+3.1 Content Mix
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+3.2 Visual & Brand Consistency
+[Assessment of visual identity consistency, brand voice alignment, and tone across platforms.]
+4. Community & Engagement
+[Community management effectiveness, response time, engagement quality, sentiment analysis, influencer/partnership opportunities.]
+5. Competitor Benchmarking
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+6. Strategic Recommendations
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+7. Proposed Content Calendar Framework
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custom-skills/72-dintel-doc-secretary/shared/document-templates/D.intelligence_Website_Diagnosis_2026.txt

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+웹사이트 진단 보고서
+Website Diagnosis Report
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+Client:  [Client Name]
+Website:  [https://example.com]
+Diagnosis Date:  2026.  .  .
+Consultant:  D.intelligence
+
+D.intelligence Website Diagnosis v2026.1
+1. Executive Summary
+[Overall assessment of the website including key findings, critical issues, and recommended priorities.]
+Overall Score Card
+
+2. Technical SEO Analysis
+2.1 Crawlability & Indexation
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+2.2 Site Architecture
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+2.3 Performance
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+3. On-page SEO Analysis
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+4. Content Quality Assessment
+[Content quality review including readability, E-E-A-T signals, thin content pages, duplicate content check, and content gap analysis.]
+5. Mobile & UX Review
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+6. Analytics & Tracking Setup
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+7. Security Assessment
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+8. Priority Action Items
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+9. Next Steps
+[Recommended next steps, timeline, and engagement options.]