fix(caldav): write per-calendar khal config instead of broken glob

The glob path = .../calendars/* was not expanded by khal, so no events
were visible. Now caldav-sync.sh and ics-to-calendarim both generate
explicit [[name]]/path entries per calendar and regenerate the config
on every sync so newly discovered calendars are picked up automatically.

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

setup/modules/optional-Modules/apps/caldav-sync.sh

@@ -48,22 +48,28 @@ log "Running initial sync..."
 vdirsyncer sync
 
 # ── khal (CLI calendar companion) ────────────────────────────────────────────
-log "Writing ~/.config/khal/config..."
+log "Writing ~/.config/khal/config (per-calendar entries)..."
 mkdir -p ~/.config/khal
-cat > ~/.config/khal/config << EOF
-[calendars]
-  [[personal]]
-    path = $CALDAV_DIR/*
-    color = light blue
+python3 - "$CALDAV_DIR" << 'PYEOF'
+import sys
+from pathlib import Path
 
-[sqlite]
-path = ~/.local/share/khal/khal.db
+cal_root = Path(sys.argv[1])
+colors   = ["light blue", "light green", "light red", "light magenta", "light cyan"]
+dirs     = sorted(d for d in cal_root.iterdir() if d.is_dir())
 
-[locale]
-timeformat = %H:%M
-dateformat = %Y-%m-%d
-datetimeformat = %Y-%m-%d %H:%M
-EOF
+lines = ["[calendars]"]
+for i, d in enumerate(dirs):
+    lines += [f"  [[{d.name}]]", f"    path = {d}", f"    color = {colors[i % len(colors)]}"]
+
+lines += [
+    "", "[sqlite]", "path = ~/.local/share/khal/khal.db",
+    "", "[locale]", "timeformat = %H:%M", "dateformat = %Y-%m-%d",
+    "datetimeformat = %Y-%m-%d %H:%M",
+]
+
+(Path.home() / ".config/khal/config").write_text("\n".join(lines) + "\n")
+PYEOF
 
 # ── ICS → calendar.vim cache converter ───────────────────────────────────────
 log "Installing ics-to-calendarim converter..."
@@ -87,8 +93,10 @@ except ImportError:
 
 CALDAV_DIR = Path.home() / ".local/share/calendars"
 CACHE_DIR  = Path.home() / ".cache/calendar.vim/local"
+KHAL_CFG   = Path.home() / ".config/khal/config"
 
-COLORS = ["#4CAF50", "#2196F3", "#FF5722", "#9C27B0", "#FF9800"]
+COLORS      = ["#4CAF50", "#2196F3", "#FF5722", "#9C27B0", "#FF9800"]
+KHAL_COLORS = ["light blue", "light green", "light red", "light magenta", "light cyan"]
 
 def to_naive(dt):
     if isinstance(dt, datetime):
@@ -145,6 +153,18 @@ def main():
             (out / "0").write_text(json.dumps({"items": events}))
 
     (CACHE_DIR / "calendarList").write_text(json.dumps({"items": cal_items}))
+
+    # regenerate khal config so new calendars are picked up automatically
+    cal_dirs = sorted(d for d in CALDAV_DIR.iterdir() if d.is_dir())
+    khal_lines = ["[calendars]"]
+    for i, d in enumerate(cal_dirs):
+        khal_lines += [f"  [[{d.name}]]", f"    path = {d}",
+                       f"    color = {KHAL_COLORS[i % len(KHAL_COLORS)]}"]
+    khal_lines += ["", "[sqlite]", "path = ~/.local/share/khal/khal.db",
+                   "", "[locale]", "timeformat = %H:%M", "dateformat = %Y-%m-%d",
+                   "datetimeformat = %Y-%m-%d %H:%M"]
+    KHAL_CFG.write_text("\n".join(khal_lines) + "\n")
+
     print(f"calendar.vim cache updated: {len(cal_items)} calendar(s).")
 
 if __name__ == "__main__":