chore(obsidian): add git plugin, Cupertino theme, and Ghostty snippet

- Add obsidian-git plugin for vault sync
- Add Cupertino theme
- Add Ghostty terminal CSS snippet
- Update appearance and plugin config

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

Author: cameronsjo

.obsidian/appearance.json

@@ -1 +1,11 @@
-{}
+{
+  "cssTheme": "Cupertino",
+  "interfaceFontFamily": "Atkinson Hyperlegible",
+  "textFontFamily": "Atkinson Hyperlegible",
+  "accentColor": "",
+  "baseFontSize": 14,
+  "translucency": true,
+  "enabledCssSnippets": [
+    "ghostty"
+  ]
+}

.obsidian/community-plugins.json

@@ -3,5 +3,6 @@
   "mcp-tools",
   "smart-connections",
   "dataview",
-  "templater-obsidian"
-]
+  "templater-obsidian",
+  "obsidian-git"
+]

.obsidian/plugins/obsidian-git/main.js

@@ -0,0 +1,10 @@
+{
+    "author": "Vinzent",
+    "authorUrl": "https://github.com/Vinzent03",
+    "id": "obsidian-git",
+    "name": "Git",
+    "description": "Integrate Git version control with automatic backup and other advanced features.",
+    "isDesktopOnly": false,
+    "fundingUrl": "https://ko-fi.com/vinzent",
+    "version": "2.35.2"
+}