Add SEO skills 19-28, 31-32 with full Python implementations

12 new skills: Keyword Strategy, SERP Analysis, Position Tracking,
Link Building, Content Strategy, E-Commerce SEO, KPI Framework,
International SEO, AI Visibility, Knowledge Graph, Competitor Intel,
and Crawl Budget. ~20K lines of Python across 25 domain scripts.
Updated skill 11 pipeline table and repo CLAUDE.md.
Enhanced skill 18 local SEO workflow from jamie.clinic audit.

Note: Skill 26 hreflang_validator.py pending (content filter block).

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

custom-skills/26-seo-international/desktop/tools/notion.md

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+# Notion
+
+## Database Configuration
+
+| Field | Value |
+|-------|-------|
+| Database ID | `2c8581e5-8a1e-8035-880b-e38cefc2f3ef` |
+| URL | https://www.notion.so/dintelligence/2c8581e58a1e8035880be38cefc2f3ef |
+
+## Required Properties
+
+| Property | Type | Description |
+|----------|------|-------------|
+| Issue | Title | Report title in Korean with date |
+| Site | URL | Audited website URL |
+| Category | Select | "International SEO" |
+| Priority | Select | Based on hreflang error severity |
+| Found Date | Date | Audit date (YYYY-MM-DD) |
+| Audit ID | Rich Text | Format: INTL-YYYYMMDD-NNN |
+
+## Example: Create Audit Report
+
+```
+mcp__notion__notion-create-pages:
+  pages:
+    - parent_id: "2c8581e5-8a1e-8035-880b-e38cefc2f3ef"
+      parent_type: "database"
+      title: "다국어 SEO 감사 - example.com (2025-01-15)"
+      properties:
+        Site:
+          url: "https://example.com"
+        Category:
+          select:
+            name: "International SEO"
+        Priority:
+          select:
+            name: "High"
+        Found Date:
+          date:
+            start: "2025-01-15"
+        Audit ID:
+          rich_text:
+            - text:
+                content: "INTL-20250115-001"
+```
+
+## Language Guidelines
+
+- Report content in Korean (한국어)
+- Keep technical English terms as-is (hreflang, x-default, ccTLD, subdomain)
+- URLs and code remain unchanged