docs: Update README with accurate v1.0 features and reorganize Gemini commands

Major Changes:
- Update README.md and README_CN.md to reflect v1.0 release instead of v2.0
- Add Gemini CLI integration highlights: dynamic template discovery, auto-selection
- Correct command references from /gemini:pre:* to /gemini:mode:*
- Add Smart Template Auto-Selection usage examples
- Reorganize Gemini commands from /pre/ to /mode/ directory structure

Documentation Improvements:
- Replace v2.0 architecture claims with actual v1.0 achievements
- Highlight 500+ lines of documentation streamlining
- Add practical examples for new auto-selection template system
- Maintain consistency between English and Chinese versions

Command Structure Updates:
- Move auto.md, bug-index.md, plan.md from /pre/ to /mode/ directory
- Update gemini-unified.md path references
- Ensure all command references are accurate and functional

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.claude/workflows/gemini-unified.md

@@ -113,7 +113,7 @@ FUNCTION analyze_and_run_gemini(analysis_type):
 
   // Step 3: Construct and execute the gemini command.
   // Always include project standards from CLAUDE.md.
-  // Uses a pre-defined analysis template for consistency.
+  // Uses a mode-defined analysis template for consistency.
   command = "gemini -p \"" + patterns + " @{CLAUDE.md} $(cat ~/.claude/workflows/gemini-templates/prompts/analysis/pattern.txt)\""
   execute_shell(command)