fix: correct command aliases - g i now initializes repo, g int for interactive mode

- Changed 'g i' from interactive to init command
- Updated 'g interactive' alias from 'i' to 'int'
- Verified 'g ls' and 'g ll' working correctly
- Updated all documentation (README, QUICK_REFERENCE, help text)
- Bumped version to 0.6.4

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gims",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "description": "Git Made Simple – AI‑powered git helper using Gemini / OpenAI",
   "author": "S41R4J",
   "license": "MIT",