fix(#131): polish fiche AM — champs pro, places, vigilance et photo.

Fiche pro entièrement éditable, places déclarées en lecture seule avec alerte rouge, icône vigilance sur la liste AM, et cadrage photo aligné sur le wizard validation.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/widgets/common/auth_network_image.dart

@@ -13,6 +13,7 @@ class AuthNetworkImage extends StatefulWidget {
     this.width,
     this.height,
     this.fit = BoxFit.cover,
+    this.alignment = Alignment.center,
     this.loadingBuilder,
     this.errorBuilder,
   });
@@ -21,6 +22,7 @@ class AuthNetworkImage extends StatefulWidget {
   final double? width;
   final double? height;
   final BoxFit fit;
+  final AlignmentGeometry alignment;
   final ImageLoadingBuilder? loadingBuilder;
   final ImageErrorWidgetBuilder? errorBuilder;
 
@@ -75,6 +77,7 @@ class _AuthNetworkImageState extends State<AuthNetworkImage> {
         width: widget.width,
         height: widget.height,
         fit: widget.fit,
+        alignment: widget.alignment,
         loadingBuilder: widget.loadingBuilder,
         errorBuilder: err,
       );
@@ -105,6 +108,7 @@ class _AuthNetworkImageState extends State<AuthNetworkImage> {
           width: widget.width,
           height: widget.height,
           fit: widget.fit,
+          alignment: widget.alignment,
           headers: headers,
           loadingBuilder: widget.loadingBuilder,
           errorBuilder: err,