feat: modernize color-tool with multiple formats, HSL support, and embedded picker

- Added --output flag supporting hex, rgb, hsl, rgba, hsla, hexa, and 'all' formats
- Implemented HSL/HSLA conversion using internal Python logic
- Added --[no-] prefix support for all toggleable flags (json, name, swatch, copy, notify, pick)
- Embedded KDE Plasma color picker Python script within the main bash script for portability
- Refactored argument parsing to implement a robust priority system (CLI > Desktop Config > Default Config)
- Improved validation to catch invalid output formats before triggering the color picker
- Updated installation logic to generate all necessary components and sample configuration
- Fixed swatch formatting when outputting JSON
- Refined desktop mode behavior and configurability

.gitignore

@@ -2,6 +2,6 @@
 .remember
 .gemini*
 .claude*
-CLAUDE.md
-GEMINI.md
-AGENTS.md
+#CLAUDE.md
+#GEMINI.md
+#AGENTS.md