chore: clean up dotfiles and add gitignore whitelist

Switch to whitelist-based .gitignore to only track essential configs:
nvim, yazi, kitty, zsh, ideavim, karabiner, tmux, scripts, starship.
Remove history, compiled files, and plugin dirs from tracking.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/tnmount.sh

@@ -1,20 +1,47 @@
 #!/bin/zsh
+set -euo pipefail
+
+# Auto-remount TN shares when network changes.
+# Credentials should be stored in macOS Keychain (connect once via Finder, remember password).
 
-# User Configuration
-USER="AK127132" # Insert Your AK Number
-PASSWORD="enzfcj4bhg!mwr8BUH" # Insert your password
 SERVER="140.78.8.107"
-SHARE1="TNGROUP/tn-group/ipec"
-SHARE2="TNHOME/home/AK127132"
 
-# Mount TNGROUP
-echo "Mounting TNGROUP..."
-osascript -e "try" -e "mount volume \"smb://$USER:$PASSWORD@$SERVER/$SHARE1\"" -e "end try"
+# Use URL-encoded path segments for spaces if needed.
+SHARE1_URL="smb://$SERVER/TNGROUP/tn-group/ipec"
+SHARE2_URL="smb://$SERVER/TNHOME/home/AK127132"
 
-# Mount TNHOME
-echo "Mounting TNHOME..."
-osascript -e "try" -e "mount volume \"smb://$USER:$PASSWORD@$SERVER/$SHARE2\"" -e "end try"
+# Expected mount points under /Volumes (adjust if your Finder mount names differ)
+MOUNT1="/Volumes/ipec"
+MOUNT2="/Volumes/AK127132"
 
-echo "Mounting complete."
+log() {
+  echo "[tnmount] $*"
+}
 
+is_mounted() {
+  local mountpoint="$1"
+  mount | grep -q " on ${mountpoint} "
+}
 
+mount_if_missing() {
+  local mountpoint="$1"
+  local url="$2"
+
+  if is_mounted "$mountpoint"; then
+    log "Already mounted: $mountpoint"
+  else
+    log "Mounting: $url"
+    open "$url"
+  fi
+}
+
+# Skip when server is unreachable (offsite/no VPN), try again on next interval.
+if ! nc -zw2 "$SERVER" 445 >/dev/null 2>&1; then
+  log "Server $SERVER:445 not reachable; skipping"
+  exit 0
+fi
+
+mount_if_missing "$MOUNT1" "$SHARE1_URL"
+mount_if_missing "$MOUNT2" "$SHARE2_URL"
+
+log "Done"