Complete Phase 1.2: Add Troubleshooting documentation section

Added comprehensive troubleshooting documentation to help users resolve
common psake issues and debug build scripts effectively.

New content added:
- docs/troubleshooting/_category_.json - Category metadata with description
- docs/troubleshooting/common-errors.md - Solutions for frequent errors including
  task not found, module loading, path resolution, PowerShell version conflicts,
  and dependency cycles
- docs/troubleshooting/faq.md - Frequently asked questions covering installation,
  basic usage, performance, and integration topics
- docs/troubleshooting/debugging-guide.md - Comprehensive debugging workflows
  including PowerShell debugger usage, verbose output, logging strategies, and
  task execution analysis

Updated sidebars.ts to add new "Troubleshooting" category after "Command Reference"
section with all three documentation pages properly linked.

All pages follow documentation standards with:
- Proper frontmatter (title, description)
- PowerShell syntax highlighting
- Cross-references to related pages
- "See Also" sections for navigation
- Practical code examples

Author: claude

docs/troubleshooting/_category_.json

@@ -0,0 +1,8 @@
+{
+  "label": "Troubleshooting",
+  "position": 7,
+  "link": {
+    "type": "generated-index",
+    "description": "Find solutions to common psake problems, get answers to frequently asked questions, and learn debugging techniques."
+  }
+}