chore: clean up .gitignore and disable automatic updates (#4)

- Remove Ruler generated files from .gitignore for better management
- Set the enabled flag to false in the .ruler/ruler.toml to prevent automatic updates, allowing for manual management of .gitignore entries

🤖 Generated with Codex CLI

Author: shunkakinoki

.gitignore

@@ -167,43 +167,3 @@ Temporary Items
 
 .turbo
 *.bak
-
-
-# START Ruler Generated Files
-.aider.conf.yml
-.aider.conf.yml.bak
-.clinerules
-.clinerules.bak
-.codex/config.toml
-.codex/config.toml.bak
-.cursor/mcp.json
-.cursor/mcp.json.bak
-.cursor/rules/ruler_cursor_instructions.mdc
-.cursor/rules/ruler_cursor_instructions.mdc.bak
-.gemini/settings.json
-.gemini/settings.json.bak
-.github/copilot-instructions.md
-.github/copilot-instructions.md.bak
-.idx/airules.md
-.idx/airules.md.bak
-.kilocode/mcp.json
-.kilocode/mcp.json.bak
-.kilocode/rules/ruler_kilocode_instructions.md
-.kilocode/rules/ruler_kilocode_instructions.md.bak
-.mcp.json
-.mcp.json.bak
-.vscode/mcp.json
-.vscode/mcp.json.bak
-.windsurf/rules/ruler_windsurf_instructions.md
-.windsurf/rules/ruler_windsurf_instructions.md.bak
-AGENT.md
-AGENT.md.bak
-AGENTS.md
-AGENTS.md.bak
-CLAUDE.md
-CLAUDE.md.bak
-GEMINI.md
-GEMINI.md.bak
-ruler_aider_instructions.md
-ruler_aider_instructions.md.bak
-# END Ruler Generated Files

.ruler/ruler.toml

@@ -56,4 +56,4 @@ merge_strategy = "merge"
 # --- Global .gitignore Configuration ---
 [gitignore]
 # Enable/disable automatic .gitignore updates (default: true)
-enabled = true
+enabled = false