Initial global Obsidian config

Shared config extracted from obsidian-config; vault-specific files (bookmarks.json, daily-notes.json) excluded.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Claude-Session: https://claude.ai/code/session_01ASYabtTgxSxJPjxPmBK9PJ

plugins/calendar/data.json

@@ -0,0 +1,10 @@
+{
+  "shouldConfirmBeforeCreate": false,
+  "weekStart": "locale",
+  "wordsPerDot": 250,
+  "showWeeklyNote": true,
+  "weeklyNoteFormat": "[N°.]ggww",
+  "weeklyNoteTemplate": "Templates/Weekly plan template",
+  "weeklyNoteFolder": "02 Areas/Weekly",
+  "localeOverride": "system-default"
+}