docs: Update all documentation to use new 'analyze' command

- Update Chinese README (README.zh-CN.md) with new preset flags
- Update docs/features/*.md (PATTERN_DETECTION, HOW_TO_GUIDES, BOOTSTRAP_SKILL_TECHNICAL)
- Update scripts/bootstrap_skill.sh to use 'skill-seekers analyze'
- Update scripts/skill_header.md command examples
- Update tests/test_bootstrap_skill.py assertions
- Fix CHANGELOG.md historical entry with correct command name

All references to 'skill-seekers-codebase' updated to 'skill-seekers analyze'
except where needed for backward compatibility (pyproject.toml, E2E tests).

Related to Phase 1 implementation from previous commits.

scripts/bootstrap_skill.sh

@@ -37,11 +37,9 @@ echo "✓ Done"
 # Step 2: Run codebase analysis
 echo "Step 2: Analyzing codebase..."
 rm -rf "$OUTPUT_DIR" 2>/dev/null || true
-uv run skill-seekers-codebase \
+uv run skill-seekers analyze \
     --directory "$PROJECT_ROOT" \
-    --output "$OUTPUT_DIR" \
-    --depth deep \
-    --ai-mode none 2>&1 | grep -E "^(INFO|✅)" || true
+    --output "$OUTPUT_DIR" 2>&1 | grep -E "^(INFO|✅)" || true
 echo "✓ Done"
 
 # Step 3: Prepend header to SKILL.md