add map comments with collab sync

apps/geolibre-desktop/src/components/comments/AddCommentDialog.tsx

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+import { useState } from "react";
+import {
+  Button,
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+  Input,
+  Textarea,
+} from "@geolibre/ui";
+import { MapPin, Layers, MessageSquare, Send, User } from "lucide-react";
+import type { PendingCommentState } from "./useCommentTool";
+
+interface AddCommentDialogProps {
+  pendingComment: PendingCommentState;
+  onSubmit: (body: string, authorName?: string) => void;
+  onCancel: () => void;
+}
+
+export function AddCommentDialog({ pendingComment, onSubmit, onCancel }: AddCommentDialogProps) {
+  const savedName =
+    typeof localStorage !== "undefined" ? localStorage.getItem("geolibre_author_name") : null;
+  const hasSavedName = !!savedName && savedName.trim().length > 0;
+
+  const [text, setText] = useState("");
+  const [authorName, setAuthorName] = useState(savedName ?? "");
+
+  const handleSubmit = (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!text.trim()) return;
+
+    const finalName = authorName.trim() || savedName?.trim() || "Author";
+    if (typeof localStorage !== "undefined" && finalName) {
+      try {
+        localStorage.setItem("geolibre_author_name", finalName);
+      } catch {
+        // ignore storage errors
+      }
+    }
+
+    onSubmit(text.trim(), finalName);
+    setText("");
+  };
+
+  const anchor = pendingComment.anchor;
+  const lngLat = anchor.lngLat;
+
+  return (
+    <Dialog
+      open={true}
+      onOpenChange={(open) => {
+        if (!open) onCancel();
+      }}
+    >
+      <DialogContent className="max-w-md p-5 sm:max-w-md">
+        <DialogHeader className="mb-2">
+          <DialogTitle className="flex items-center gap-2 text-sm">
+            <MessageSquare className="h-4 w-4 text-primary" />
+            <span>Add Review Comment</span>
+          </DialogTitle>
+          <DialogDescription className="text-xs text-muted-foreground">
+            Post an anchored note on this project for team review or offline reference.
+          </DialogDescription>
+        </DialogHeader>
+
+        <form onSubmit={handleSubmit} className="space-y-3.5">
+          <div className="flex items-center gap-2 text-xs text-muted-foreground bg-muted/50 p-2.5 rounded-md border border-border/60">
+            {anchor.type === "feature" ? (
+              <>
+                <Layers className="h-3.5 w-3.5 text-sky-400 shrink-0" />
+                <span className="truncate font-medium text-foreground">
+                  Anchored to Feature #{String(anchor.featureId)} ({anchor.layerId})
+                </span>
+              </>
+            ) : (
+              <>
+                <MapPin className="h-3.5 w-3.5 text-amber-400 shrink-0" />
+                <span className="font-medium text-foreground">
+                  Anchored to (
+                  {lngLat ? `${lngLat[1].toFixed(4)}, ${lngLat[0].toFixed(4)}` : "Map Point"})
+                </span>
+              </>
+            )}
+          </div>
+
+          {/* Prompt for name 1 time if not saved in localStorage */}
+          {!hasSavedName ? (
+            <div className="space-y-1">
+              <label className="text-[11px] font-medium text-muted-foreground flex items-center gap-1">
+                <User className="h-3 w-3 text-primary" />
+                <span>Your Name (Asked once, saved automatically)</span>
+              </label>
+              <Input
+                value={authorName}
+                onChange={(e) => setAuthorName(e.target.value)}
+                placeholder="e.g. Alex or Sarah"
+                className="text-xs h-8"
+                autoFocus
+              />
+            </div>
+          ) : (
+            <div className="flex items-center justify-between text-[11px] text-muted-foreground px-1">
+              <span>
+                Posting as <strong className="text-foreground">{savedName}</strong>
+              </span>
+              <button
+                type="button"
+                onClick={() => {
+                  if (typeof localStorage !== "undefined") {
+                    localStorage.removeItem("geolibre_author_name");
+                    setAuthorName("");
+                  }
+                }}
+                className="text-primary hover:underline text-[10px]"
+              >
+                Change Name
+              </button>
+            </div>
+          )}
+
+          <div className="space-y-1">
+            <label className="text-[11px] font-medium text-muted-foreground">
+              Comment / Feedback
+            </label>
+            <Textarea
+              value={text}
+              onChange={(e) => setText(e.target.value)}
+              placeholder="Type your review note or feedback here..."
+              rows={3}
+              className="text-xs min-h-20 resize-none"
+              autoFocus={hasSavedName}
+            />
+          </div>
+
+          <div className="flex items-center justify-end gap-2 pt-1">
+            <Button type="button" variant="outline" size="sm" onClick={onCancel}>
+              Cancel
+            </Button>
+            <Button
+              type="submit"
+              variant="default"
+              size="sm"
+              className="gap-1.5"
+              disabled={!text.trim() || (!hasSavedName && !authorName.trim())}
+            >
+              <Send className="h-3.5 w-3.5" />
+              <span>Post Comment</span>
+            </Button>
+          </div>
+        </form>
+      </DialogContent>
+    </Dialog>
+  );
+}

apps/geolibre-desktop/src/components/comments/CommentMapOverlay.tsx

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+import { useEffect, useRef } from "react";
+import { useAppStore, type ProjectComment } from "@geolibre/core";
+import type { MapController } from "@geolibre/map";
+import maplibreGl from "maplibre-gl";
+
+interface CommentMapOverlayProps {
+  mapControllerRef: React.RefObject<MapController | null>;
+  onSelectComment?: (commentId: string) => void;
+  showResolved?: boolean;
+}
+
+export function resolveCommentCoordinates(
+  comment: ProjectComment,
+  map: maplibreGl.Map | null,
+): [number, number] | null {
+  // 1. Direct lngLat on point or feature anchor
+  if (comment.anchor.lngLat) {
+    return comment.anchor.lngLat;
+  }
+
+  if (!map) return null;
+
+  // 2. Query rendered features on active layer
+  if (comment.anchor.type === "feature") {
+    const { layerId, featureId } = comment.anchor;
+    try {
+      const features = map.queryRenderedFeatures(undefined, {
+        layers: [layerId],
+        filter: ["==", ["id"], featureId],
+      });
+      if (features.length > 0 && features[0].geometry) {
+        const g = features[0].geometry;
+        if (g.type === "Point") return g.coordinates as [number, number];
+        if (g.type === "Polygon" && g.coordinates[0]?.[0]) {
+          return g.coordinates[0][0] as [number, number];
+        }
+        if (g.type === "LineString" && g.coordinates[0]) {
+          return g.coordinates[0] as [number, number];
+        }
+      }
+    } catch {
+      // Ignore query errors
+    }
+
+    // 3. Fallback to GeoJSON features in store layers
+    const layer = useAppStore.getState().layers.find((l) => l.id === layerId);
+    if (layer?.geojson?.features) {
+      const feat = layer.geojson.features.find((f) => String(f.id) === String(featureId));
+      if (feat?.geometry) {
+        const g = feat.geometry;
+        if (g.type === "Point") return g.coordinates as [number, number];
+        if (g.type === "Polygon" && g.coordinates[0]?.[0]) {
+          return g.coordinates[0][0] as [number, number];
+        }
+        if (g.type === "LineString" && g.coordinates[0]) {
+          return g.coordinates[0] as [number, number];
+        }
+      }
+    }
+  }
+
+  return null;
+}
+
+export function CommentMapOverlay({
+  mapControllerRef,
+  onSelectComment,
+  showResolved = false,
+}: CommentMapOverlayProps): null {
+  const comments = useAppStore((s) => s.comments);
+  const markersRef = useRef<maplibreGl.Marker[]>([]);
+
+  useEffect(() => {
+    const map = mapControllerRef.current?.getMap() ?? null;
+    if (!map) return;
+
+    const renderMarkers = () => {
+      // Clear existing markers
+      markersRef.current.forEach((m) => m.remove());
+      markersRef.current = [];
+
+      comments.forEach((comment, idx) => {
+        if (comment.resolved && !showResolved) return;
+
+        const coords = resolveCommentCoordinates(comment, map);
+        if (!coords) return;
+
+        const pinColor = comment.author?.color || "#3b82f6";
+
+        const container = document.createElement("div");
+        container.className =
+          "group relative cursor-pointer select-none transition-transform duration-150 ease-out hover:scale-115";
+        container.style.zIndex = comment.resolved ? "9" : "10";
+
+        // Build the pin with DOM APIs so the author color is set as a style
+        // property, never interpolated into markup — defense-in-depth against
+        // a hand-edited project file with a hostile color value.
+        const pin = document.createElement("div");
+        pin.style.cssText = [
+          "display:flex",
+          "align-items:center",
+          "justify-content:center",
+          "width:28px",
+          "height:28px",
+          "border-radius:50% 50% 50% 0",
+          "transform:rotate(-45deg)",
+          `border:2px solid ${comment.resolved ? "#10b981" : "#ffffff"}`,
+          "box-shadow:0 4px 10px rgba(0,0,0,0.35)",
+          `opacity:${comment.resolved ? 0.65 : 1}`,
+        ].join(";");
+        pin.style.backgroundColor = pinColor;
+
+        const label = document.createElement("span");
+        label.style.cssText =
+          "transform:rotate(45deg);color:#ffffff;font-size:11px;font-weight:700;font-family:system-ui,sans-serif;line-height:1";
+        label.textContent = `#${idx + 1}`;
+        pin.appendChild(label);
+        container.appendChild(pin);
+
+        container.addEventListener("click", (e) => {
+          e.stopPropagation();
+          onSelectComment?.(comment.id);
+        });
+
+        const marker = new maplibreGl.Marker({
+          element: container,
+          anchor: "bottom",
+        })
+          .setLngLat(coords)
+          .addTo(map);
+
+        markersRef.current.push(marker);
+      });
+    };
+
+    renderMarkers();
+
+    // Re-render when the style reloads (basemap switch wipes all markers).
+    // No moveend listener needed: MapLibre Marker objects are positioned in
+    // geographic space and track the map viewport automatically.
+    map.on("styledata", renderMarkers);
+
+    return () => {
+      map.off("styledata", renderMarkers);
+      markersRef.current.forEach((m) => m.remove());
+      markersRef.current = [];
+    };
+  }, [comments, showResolved, mapControllerRef, onSelectComment]);
+
+  return null;
+}