feat: Allow members to see Rada Izby events without joining

- Members can VIEW Rada Izby events (title, date, location)
- Only Rada members can RSVP and see attendee list
- Add can_user_see_attendees() method to NordaEvent
- Update event template to conditionally show RSVP and attendees
- Add info banner for non-Rada members viewing restricted events

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

database.py

@@ -1739,7 +1739,11 @@ class NordaEvent(Base):
         return self.event_date < date.today()
 
     def can_user_view(self, user) -> bool:
-        """Check if a user can view this event based on access_level."""
+        """Check if a user can view this event (title, date, location).
+
+        All members can SEE all events including Rada Izby events.
+        They just can't register or see attendee list for restricted events.
+        """
         if not user or not user.is_authenticated:
             return False
 
@@ -1754,13 +1758,56 @@ class NordaEvent(Base):
         elif access == 'members_only':
             return user.is_norda_member or user.has_role(SystemRole.MEMBER)
         elif access == 'rada_only':
-            return user.is_rada_member
+            # Wszyscy członkowie WIDZĄ wydarzenia Rady Izby (tytuł, data, miejsce)
+            # ale nie mogą dołączyć ani zobaczyć uczestników
+            return user.is_norda_member or user.has_role(SystemRole.MEMBER) or user.is_rada_member
         else:
             return False
 
     def can_user_attend(self, user) -> bool:
-        """Check if a user can register for this event."""
-        return self.can_user_view(user)
+        """Check if a user can register for this event.
+
+        For Rada Izby events, only designated board members can register.
+        """
+        if not user or not user.is_authenticated:
+            return False
+
+        # Admins can attend everything
+        if user.is_admin or user.has_role(SystemRole.OFFICE_MANAGER):
+            return True
+
+        access = self.access_level or 'members_only'
+
+        if access == 'public':
+            return True
+        elif access == 'members_only':
+            return user.is_norda_member or user.has_role(SystemRole.MEMBER)
+        elif access == 'rada_only':
+            # Tylko członkowie Rady Izby mogą się zapisać
+            return user.is_rada_member
+        else:
+            return False
+
+    def can_user_see_attendees(self, user) -> bool:
+        """Check if a user can see the attendee list.
+
+        For Rada Izby events, only board members can see who's attending.
+        """
+        if not user or not user.is_authenticated:
+            return False
+
+        # Admins can see attendees
+        if user.is_admin or user.has_role(SystemRole.OFFICE_MANAGER):
+            return True
+
+        access = self.access_level or 'members_only'
+
+        if access == 'rada_only':
+            # Tylko członkowie Rady Izby widzą listę uczestników
+            return user.is_rada_member
+        else:
+            # Dla innych wydarzeń - wszyscy uprawnieni widzą uczestników
+            return self.can_user_view(user)
 
 
 class EventAttendee(Base):

templates/calendar/event.html

@@ -254,23 +254,35 @@
     {% endif %}
 
     {% if not event.is_past %}
-    <div class="rsvp-section">
-        <div>
-            <strong>Chcesz wziąć udział?</strong>
-            <p class="text-muted" style="margin: 0;">{{ event.attendee_count }} osób już się zapisało{% if event.max_attendees %} (limit: {{ event.max_attendees }}){% endif %}</p>
+        {% if event.can_user_attend(current_user) %}
+        <div class="rsvp-section">
+            <div>
+                <strong>Chcesz wziąć udział?</strong>
+                <p class="text-muted" style="margin: 0;">{{ event.attendee_count }} osób już się zapisało{% if event.max_attendees %} (limit: {{ event.max_attendees }}){% endif %}</p>
+            </div>
+            <button id="rsvp-btn" class="btn {% if user_attending %}btn-secondary attending{% else %}btn-primary{% endif %}" onclick="toggleRSVP()">
+                {% if user_attending %}Wypisz się{% else %}Wezmę udział{% endif %}
+            </button>
         </div>
-        <button id="rsvp-btn" class="btn {% if user_attending %}btn-secondary attending{% else %}btn-primary{% endif %}" onclick="toggleRSVP()">
-            {% if user_attending %}Wypisz się{% else %}Wezmę udział{% endif %}
-        </button>
-    </div>
+        {% elif event.access_level == 'rada_only' %}
+        <div class="rsvp-section" style="background: #fef3c7; border: 1px solid #fde68a;">
+            <svg width="24" height="24" fill="none" stroke="#92400e" stroke-width="2" viewBox="0 0 24 24" style="flex-shrink: 0;">
+                <path d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"/>
+            </svg>
+            <div>
+                <strong style="color: #92400e;">Wydarzenie tylko dla Rady Izby</strong>
+                <p class="text-muted" style="margin: 0; color: #a16207;">Zapisy są dostępne wyłącznie dla członków Rady Izby NORDA.</p>
+            </div>
+        </div>
+        {% endif %}
     {% else %}
     <div class="rsvp-section" style="background: var(--border);">
-        <p class="text-muted" style="margin: 0;">To wydarzenie już się odbyło. {{ event.attendee_count }} osób brało udział.</p>
+        <p class="text-muted" style="margin: 0;">To wydarzenie już się odbyło.{% if event.can_user_see_attendees(current_user) %} {{ event.attendee_count }} osób brało udział.{% endif %}</p>
     </div>
     {% endif %}
 </div>
 
-{% if event.attendees %}
+{% if event.attendees and event.can_user_see_attendees(current_user) %}
 <div class="attendees-section">
     <h2>Uczestnicy ({{ event.attendee_count }})</h2>
     <div class="attendees-list">