feat(tenancy): add delete button on table + add-to-store in edit modal

Table actions now show view + edit + delete (trash icon) for non-owner
members. Delete opens the existing remove-from-all-stores modal.

Edit modal enhanced with "Add to another store" section:
- Shows a dashed-border card with store dropdown + role dropdown + add button
- Only appears when the member is not yet in all merchant stores
- Uses the existing invite API to add the member to the selected store

i18n: 2 new keys (add_to_store, select_store) in 4 locales.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/tenancy/static/merchant/js/merchant-team.js

@@ -38,6 +38,12 @@ function merchantTeam() {
         showViewModal: false,
         selectedMember: null,
 
+        // Add to store form (inside edit modal)
+        addStoreForm: {
+            store_id: '',
+            role_name: 'staff',
+        },
+
         // Invite form
         inviteForm: {
             email: '',
@@ -186,6 +192,45 @@ function merchantTeam() {
             this.showInviteModal = true;
         },
 
+        /**
+         * Get stores the member is NOT yet in (for "Add to store" in edit modal)
+         */
+        getAvailableStores(member) {
+            if (!member || !member.stores) return this.stores;
+            const memberStoreIds = member.stores.map(s => s.store_id);
+            return this.stores.filter(s => !memberStoreIds.includes(s.id));
+        },
+
+        /**
+         * Add member to another store (invites them via existing invite API)
+         */
+        async addMemberToStore(member) {
+            if (!this.addStoreForm.store_id) return;
+
+            this.saving = true;
+            try {
+                await apiClient.post('/merchants/account/team/invite', {
+                    email: member.email,
+                    store_ids: [parseInt(this.addStoreForm.store_id)],
+                    role_name: this.addStoreForm.role_name,
+                });
+
+                Utils.showToast(I18n.t('tenancy.messages.invitation_sent_successfully'), 'success');
+                merchantTeamLog.info('Added member to store:', this.addStoreForm.store_id);
+
+                this.addStoreForm.store_id = '';
+                this.addStoreForm.role_name = 'staff';
+                this.showEditModal = false;
+                this.selectedMember = null;
+                await this.loadTeamData();
+            } catch (error) {
+                merchantTeamLog.error('Failed to add member to store:', error);
+                Utils.showToast(error.message || 'Failed to add member to store', 'error');
+            } finally {
+                this.saving = false;
+            }
+        },
+
         /**
          * Toggle store in invite form store_ids
          */
@@ -242,6 +287,7 @@ function merchantTeam() {
          */
         openEditModal(member) {
             this.selectedMember = JSON.parse(JSON.stringify(member));
+            this.addStoreForm = { store_id: '', role_name: 'staff' };
             this.showEditModal = true;
         },