refactor: consolidate project loading into EntityGrid component

Unify project loading and searching logic in EntityGrid.vue to eliminate
duplication. Make entities prop optional for projects, add internal
project state, and auto-load projects when needed.

- EntityGrid: Combine search/load into fetchProjects(), add internal
  allProjects state, handle pagination internally for both search and
  load modes
- OnboardMeetingSetupView: Remove project loading methods
- MeetingProjectDialog: Remove project props
- GiftedDialog: Remove project loading logic
- EntitySelectionStep: Make projects prop optional

Reduces code duplication by ~150 lines and simplifies component APIs.
All project selection now uses EntityGrid's internal loading.

src/views/OnboardMeetingSetupView.vue

@@ -269,12 +269,10 @@
 
     <MeetingProjectDialog
       ref="meetingProjectDialog"
-      :all-projects="allProjects"
       :active-did="activeDid"
       :all-my-dids="allMyDids"
       :all-contacts="allContacts"
       :notify="$notify"
-      :load-more-callback="handleLoadMoreProjects"
       @assign="handleProjectLinkAssigned"
       @open="handleDialogOpen"
       @close="handleDialogClose"
@@ -418,7 +416,6 @@ export default class OnboardMeetingView extends Vue {
   isRegistered = false;
   showDeleteConfirm = false;
   fullName = "";
-  allProjects: PlanData[] = [];
   allContacts: Contact[] = [];
   allMyDids: string[] = [];
   selectedProjectData: PlanData | null = null;
@@ -847,82 +844,6 @@ export default class OnboardMeetingView extends Vue {
     }
   }
 
-  /**
-   * Load projects from the API
-   * @param beforeId - Optional rowId for pagination (loads projects before this ID)
-   */
-  async loadProjects(beforeId?: string) {
-    try {
-      const headers = await getHeaders(this.activeDid);
-      let url = `${this.apiServer}/api/v2/report/plans`;
-      if (beforeId) {
-        url += `?beforeId=${encodeURIComponent(beforeId)}`;
-      }
-      const resp = await this.axios.get(url, { headers });
-
-      if (resp.status === 200 && resp.data.data) {
-        const newProjects = resp.data.data.map(
-          (plan: {
-            name: string;
-            description: string;
-            image?: string;
-            handleId: string;
-            issuerDid: string;
-            rowId?: string;
-          }) => ({
-            name: plan.name,
-            description: plan.description,
-            image: plan.image,
-            handleId: plan.handleId,
-            issuerDid: plan.issuerDid,
-            rowId: plan.rowId,
-          }),
-        );
-
-        if (beforeId) {
-          // Pagination: append new projects
-          this.allProjects.push(...newProjects);
-        } else {
-          // Initial load: replace array
-          this.allProjects = newProjects;
-        }
-      }
-    } catch (error) {
-      this.$logAndConsole(
-        "Error loading projects: " + errorStringForLog(error),
-        true,
-      );
-      // Don't show error to user - just leave projects empty (or keep existing if pagination)
-      if (!beforeId) {
-        this.allProjects = [];
-      }
-    }
-  }
-
-  /**
-   * Handle loading more projects when EntityGrid reaches the end
-   * Called by MeetingProjectDialog via loadMoreCallback
-   * @param entities - Current array of projects
-   */
-  async handleLoadMoreProjects(
-    entities: Array<{
-      handleId: string;
-      rowId?: string;
-    }>,
-  ): Promise<void> {
-    if (entities.length === 0) {
-      return;
-    }
-
-    const lastProject = entities[entities.length - 1];
-    if (!lastProject.rowId) {
-      // No rowId means we can't paginate - likely end of data
-      return;
-    }
-
-    await this.loadProjects(lastProject.rowId);
-  }
-
   /**
    * Computed property for selected project
    * Returns the separately stored selected project data
@@ -977,18 +898,13 @@ export default class OnboardMeetingView extends Vue {
   }
 
   /**
-   * Handle dialog open event - stop auto-refresh in MembersList and load projects
+   * Handle dialog open event - stop auto-refresh in MembersList
    */
-  async handleDialogOpen(): Promise<void> {
+  handleDialogOpen(): void {
     const membersList = this.$refs.membersList as MembersList;
     if (membersList) {
       membersList.stopAutoRefresh();
     }
-
-    // Load projects when dialog opens (if not already loaded)
-    if (this.allProjects.length === 0) {
-      await this.loadProjects();
-    }
   }
 
   /**