fix(skills): remove phantom resource references and fix CoC links (#447)

Remove references to non-existent resource files (references/, assets/,
scripts/, examples/) from 115 skill SKILL.md files. These sections
pointed to directories and files that were never created, causing
confusion when users install skills.

Also fix broken Code of Conduct links in issue templates to use
absolute GitHub URLs instead of relative paths that 404.

plugins/developer-essentials/skills/auth-implementation-patterns/SKILL.md

@@ -636,12 +636,3 @@ app.use("/api/", apiLimiter);
 - **Insecure Password Reset**: Use secure tokens with expiration
 - **No Rate Limiting**: Vulnerable to brute force
 - **Trusting Client Data**: Always validate on server
-
-## Resources
-
-- **references/jwt-best-practices.md**: JWT implementation guide
-- **references/oauth2-flows.md**: OAuth2 flow diagrams and examples
-- **references/session-security.md**: Secure session management
-- **assets/auth-security-checklist.md**: Security review checklist
-- **assets/password-policy-template.md**: Password requirements template
-- **scripts/token-validator.ts**: JWT validation utility

plugins/developer-essentials/skills/bazel-build-optimization/SKILL.md

@@ -379,9 +379,3 @@ bazel build //... --notrack_incremental_state
 - **Don't commit bazel-\* dirs** - Add to .gitignore
 - **Don't skip WORKSPACE setup** - Foundation of build
 - **Don't ignore build warnings** - Technical debt
-
-## Resources
-
-- [Bazel Documentation](https://bazel.build/docs)
-- [Bazel Remote Execution](https://bazel.build/docs/remote-execution)
-- [rules_js](https://github.com/aspect-build/rules_js)

plugins/developer-essentials/skills/code-review-excellence/SKILL.md

@@ -527,12 +527,3 @@ When author disagrees with your feedback:
 
 ✅ Approve after addressing required changes
 ```
-
-## Resources
-
-- **references/code-review-best-practices.md**: Comprehensive review guidelines
-- **references/common-bugs-checklist.md**: Language-specific bugs to watch for
-- **references/security-review-guide.md**: Security-focused review checklist
-- **assets/pr-review-template.md**: Standard review comment template
-- **assets/review-checklist.md**: Quick reference checklist
-- **scripts/pr-analyzer.py**: Analyze PR complexity and suggest reviewers

plugins/developer-essentials/skills/debugging-strategies/SKILL.md

@@ -525,12 +525,3 @@ afterEach(() => {
 - [ ] Cache issues (clear cache)
 - [ ] Stale data (refresh database)
 ```
-
-## Resources
-
-- **references/debugging-tools-guide.md**: Comprehensive tool documentation
-- **references/performance-profiling.md**: Performance debugging guide
-- **references/production-debugging.md**: Debugging live systems
-- **assets/debugging-checklist.md**: Quick reference checklist
-- **assets/common-bugs.md**: Common bug patterns
-- **scripts/debug-helper.ts**: Debugging utility functions

plugins/developer-essentials/skills/e2e-testing-patterns/SKILL.md

@@ -533,12 +533,3 @@ test('checkout flow', async ({ page }) => {
 // 5. Inspect page state
 await page.pause();  // Pauses execution, opens inspector
 ```
-
-## Resources
-
-- **references/playwright-best-practices.md**: Playwright-specific patterns
-- **references/cypress-best-practices.md**: Cypress-specific patterns
-- **references/flaky-test-debugging.md**: Debugging unreliable tests
-- **assets/e2e-testing-checklist.md**: What to test with E2E
-- **assets/selector-strategies.md**: Finding reliable selectors
-- **scripts/test-analyzer.ts**: Analyze test flakiness and duration

plugins/developer-essentials/skills/error-handling-patterns/SKILL.md

@@ -630,12 +630,3 @@ def process_order(order_id: str) -> Order:
 - **Poor Error Messages**: "Error occurred" is not helpful
 - **Returning Error Codes**: Use exceptions or Result types
 - **Ignoring Async Errors**: Unhandled promise rejections
-
-## Resources
-
-- **references/exception-hierarchy-design.md**: Designing error class hierarchies
-- **references/error-recovery-strategies.md**: Recovery patterns for different scenarios
-- **references/async-error-handling.md**: Handling errors in concurrent code
-- **assets/error-handling-checklist.md**: Review checklist for error handling
-- **assets/error-message-guide.md**: Writing helpful error messages
-- **scripts/error-analyzer.py**: Analyze error patterns in logs

plugins/developer-essentials/skills/git-advanced-workflows/SKILL.md

@@ -394,12 +394,3 @@ git reset --hard HEAD^
 git reflog
 git branch recovered-branch abc123
 ```
-
-## Resources
-
-- **references/git-rebase-guide.md**: Deep dive into interactive rebase
-- **references/git-conflict-resolution.md**: Advanced conflict resolution strategies
-- **references/git-history-rewriting.md**: Safely rewriting Git history
-- **assets/git-workflow-checklist.md**: Pre-PR cleanup checklist
-- **assets/git-aliases.md**: Useful Git aliases for advanced workflows
-- **scripts/git-clean-branches.sh**: Clean up merged and stale branches

plugins/developer-essentials/skills/monorepo-management/SKILL.md

@@ -612,12 +612,3 @@ pnpm changeset publish
     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
 ```
-
-## Resources
-
-- **references/turborepo-guide.md**: Comprehensive Turborepo documentation
-- **references/nx-guide.md**: Nx monorepo patterns
-- **references/pnpm-workspaces.md**: pnpm workspace features
-- **assets/monorepo-checklist.md**: Setup checklist
-- **assets/migration-guide.md**: Multi-repo to monorepo migration
-- **scripts/dependency-graph.ts**: Visualize package dependencies

plugins/developer-essentials/skills/nx-workspace-patterns/SKILL.md

@@ -449,9 +449,3 @@ nx migrate --run-migrations
 - **Don't skip affected** - Test only what changed
 - **Don't ignore boundaries** - Tech debt accumulates
 - **Don't over-granularize** - Balance lib count
-
-## Resources
-
-- [Nx Documentation](https://nx.dev/getting-started/intro)
-- [Module Boundaries](https://nx.dev/core-features/enforce-module-boundaries)
-- [Nx Cloud](https://nx.app/)

plugins/developer-essentials/skills/sql-optimization-patterns/SKILL.md

@@ -497,13 +497,3 @@ FROM pg_stat_user_indexes
 WHERE idx_scan = 0
 ORDER BY pg_relation_size(indexrelid) DESC;
 ```
-
-## Resources
-
-- **references/postgres-optimization-guide.md**: PostgreSQL-specific optimization
-- **references/mysql-optimization-guide.md**: MySQL/MariaDB optimization
-- **references/query-plan-analysis.md**: Deep dive into EXPLAIN plans
-- **assets/index-strategy-checklist.md**: When and how to create indexes
-- **assets/query-optimization-checklist.md**: Step-by-step optimization guide
-- **scripts/analyze-slow-queries.sql**: Identify slow queries in your database
-- **scripts/index-recommendations.sql**: Generate index recommendations

plugins/developer-essentials/skills/turborepo-caching/SKILL.md

@@ -368,9 +368,3 @@ TURBO_LOG_VERBOSITY=debug turbo build --filter=@myorg/web
 - **Don't include secrets in env** - Use runtime env vars
 - **Don't ignore dependsOn** - Causes race conditions
 - **Don't over-filter** - May miss dependencies
-
-## Resources
-
-- [Turborepo Documentation](https://turbo.build/repo/docs)
-- [Caching Guide](https://turbo.build/repo/docs/core-concepts/caching)
-- [Remote Caching](https://turbo.build/repo/docs/core-concepts/remote-caching)