feat: enhanced custom config directory with --config/-c option

[lroolle]

Description

Enhance custom config directory support with flexible --config/-c option for mounting Claude configuration from custom locations

Type

• New feature
• Enhancement

Details

Building on issue #31, implement comprehensive custom config directory support:

1. Add --config/-c option to claude.sh

   • Default behavior: mount ~/.claude and ~/.claude.json as usual
   • With -c ~/Desktop/claude-config-home/:
     • Create directory if it doesn't exist
     • Mount subdirectories to appropriate locations in container

2. Directory mapping behavior:

   • ~/Desktop/claude-config-home/.claude → /home/claude/.claude
   • ~/Desktop/claude-config-home/.claude.json → /home/claude/.claude.json
   • Support for other config files as needed

3. Multiple config profiles support:

   • Allow users to maintain different Claude configurations
   • Easy switching between work/personal profiles
   • Isolation of authentication states

Related Files

• claude.sh (add --config/-c parameter parsing and mounting logic)
• docker-entrypoint.sh (update to handle custom config mount points)
• claude-yolo (pass through --config option)

Test Plan

• Test default behavior without --config flag
• Test custom config directory creation if missing
• Test mounting from existing custom config directory
• Verify authentication persists in custom location
• Test switching between multiple config directories
• Ensure backward compatibility with existing setups
• Test error handling for invalid paths