feat(EntityGrid): add server-side search with pagination for projects

Implement server-side search for projects using API endpoint with
pagination support via beforeId parameter. Contacts continue using
client-side filtering from complete local database.

- Add PlatformServiceMixin for internal apiServer access
- Implement performProjectSearch() with pagination
- Update infinite scroll to handle search pagination
- Add search lifecycle management and error handling

No breaking changes to parent components.

src/components/EntityGrid.vue

@@ -164,6 +164,10 @@ import { Contact } from "../db/tables/contacts";
 import { PlanData } from "../interfaces/records";
 import { NotificationIface } from "../constants/app";
 import { UNNAMED_ENTITY_NAME } from "@/constants/entities";
+import { PlatformServiceMixin } from "@/utils/PlatformServiceMixin";
+import { getHeaders } from "../libs/endorserServer";
+import { logger } from "../utils/logger";
+import { TIMEOUTS } from "@/utils/notify";
 
 /**
  * Constants for infinite scroll configuration
@@ -191,6 +195,7 @@ const RECENT_CONTACTS_COUNT = 3;
     ProjectCard,
     SpecialEntityCard,
   },
+  mixins: [PlatformServiceMixin],
 })
 export default class EntityGrid extends Vue {
   /** Type of entities to display */
@@ -202,6 +207,11 @@ export default class EntityGrid extends Vue {
   isSearching = false;
   searchTimeout: NodeJS.Timeout | null = null;
   filteredEntities: Contact[] | PlanData[] = [];
+  searchBeforeId: string | undefined = undefined;
+  isLoadingSearchMore = false;
+
+  // API server for project searches
+  apiServer = "";
 
   // Infinite scroll state
   displayedCount = INITIAL_BATCH_SIZE;
@@ -212,14 +222,15 @@ export default class EntityGrid extends Vue {
   /**
    * Array of entities to display
    *
+   * For contacts: Must be a COMPLETE list from local database.
+   * Use $contactsByDateAdded() to ensure all contacts are included.
+   * Client-side filtering assumes the complete list is available.
    * IMPORTANT: When passing Contact[] arrays, they must be sorted by date added
    * (newest first) for the "Recently Added" section to display correctly.
-   * Use $contactsByDateAdded() instead of $getAllContacts() or $contacts().
    *
-   * The recentContacts computed property assumes contacts are already sorted
+   * For projects: Can be partial list (pagination supported).
-   * by date added and simply takes the first 3. If contacts are sorted
+   * Server-side search will fetch matching results with pagination,
-   * alphabetically or in another order, the wrong contacts will appear in
+   * regardless of what's in this prop.
-   * "Recently Added".
    */
   @Prop({ required: true })
   entities!: Contact[] | PlanData[];
@@ -475,24 +486,162 @@ export default class EntityGrid extends Vue {
 
   /**
    * Perform the actual search
+   * Routes to server-side search for projects or client-side filtering for contacts
    */
   async performSearch(): Promise<void> {
     if (!this.searchTerm.trim()) {
       this.filteredEntities = [];
       this.displayedCount = INITIAL_BATCH_SIZE;
+      this.searchBeforeId = undefined;
       this.infiniteScrollReset?.();
       return;
     }
 
     this.isSearching = true;
+    this.searchBeforeId = undefined; // Reset pagination for new search
 
     try {
-      // Simulate async search (in case we need to add API calls later)
+      if (this.entityType === "projects") {
+        // Server-side search for projects (initial load, no beforeId)
+        await this.performProjectSearch();
+      } else {
+        // Client-side filtering for contacts (complete list)
+        await this.performContactSearch();
+      }
+
+      // Reset displayed count when search completes
+      this.displayedCount = INITIAL_BATCH_SIZE;
+      this.infiniteScrollReset?.();
+    } finally {
+      this.isSearching = false;
+    }
+  }
+
+  /**
+   * Perform server-side project search with optional pagination
+   * Uses claimContents parameter for search and beforeId for pagination.
+   * Results are appended when paginating, replaced on initial search.
+   *
+   * @param beforeId - Optional rowId for pagination (loads projects before this ID)
+   */
+  async performProjectSearch(beforeId?: string): Promise<void> {
+    if (!this.apiServer) {
+      this.filteredEntities = [];
+      if (this.notify) {
+        this.notify(
+          {
+            group: "alert",
+            type: "danger",
+            title: "Error",
+            text: "API server not configured",
+          },
+          TIMEOUTS.SHORT,
+        );
+      }
+      return;
+    }
+
+    const searchLower = this.searchTerm.toLowerCase().trim();
+    let url = `${this.apiServer}/api/v2/report/plans?claimContents=${encodeURIComponent(searchLower)}`;
+
+    if (beforeId) {
+      url += `&beforeId=${encodeURIComponent(beforeId)}`;
+    }
+
+    try {
+      const response = await fetch(url, {
+        method: "GET",
+        headers: await getHeaders(this.activeDid),
+      });
+
+      if (response.status !== 200) {
+        throw new Error("Failed to search projects");
+      }
+
+      const results = await response.json();
+      if (results.data) {
+        const newProjects = results.data.map(
+          (plan: PlanData & { rowId?: string }) => ({
+            ...plan,
+            rowId: plan.rowId,
+          }),
+        );
+
+        logger.debug("[EntityGrid] Project search results", {
+          beforeId,
+          newProjectsCount: newProjects.length,
+          hasRowId:
+            newProjects.length > 0
+              ? !!newProjects[newProjects.length - 1]?.rowId
+              : false,
+          lastRowId:
+            newProjects.length > 0
+              ? newProjects[newProjects.length - 1]?.rowId
+              : undefined,
+        });
+
+        if (beforeId) {
+          // Pagination: append new projects to existing search results
+          this.filteredEntities.push(...newProjects);
+        } else {
+          // Initial search: replace array
+          this.filteredEntities = newProjects;
+        }
+
+        // Update searchBeforeId for next pagination
+        // Use the last project's rowId, or undefined if no more results
+        if (newProjects.length > 0) {
+          const lastProject = newProjects[newProjects.length - 1];
+          // Only set searchBeforeId if rowId exists (indicates more results available)
+          this.searchBeforeId = lastProject.rowId || undefined;
+          logger.debug("[EntityGrid] Updated searchBeforeId", {
+            searchBeforeId: this.searchBeforeId,
+            filteredEntitiesCount: this.filteredEntities.length,
+          });
+        } else {
+          this.searchBeforeId = undefined; // No more results
+          logger.debug("[EntityGrid] No more search results", {
+            filteredEntitiesCount: this.filteredEntities.length,
+          });
+        }
+      } else {
+        if (!beforeId) {
+          // Only clear on initial search, not pagination
+          this.filteredEntities = [];
+        }
+        this.searchBeforeId = undefined;
+      }
+    } catch (error) {
+      logger.error("Error searching projects:", error);
+      if (!beforeId) {
+        // Only clear on initial search error, not pagination error
+        this.filteredEntities = [];
+      }
+      this.searchBeforeId = undefined;
+      if (this.notify) {
+        this.notify(
+          {
+            group: "alert",
+            type: "danger",
+            title: "Error",
+            text: "Failed to search projects. Please try again.",
+          },
+          TIMEOUTS.STANDARD,
+        );
+      }
+    }
+  }
+
+  /**
+   * Client-side contact search
+   * Assumes entities prop contains complete contact list from local database
+   */
+  async performContactSearch(): Promise<void> {
+    // Simulate async (for consistency with project search)
     await new Promise((resolve) => setTimeout(resolve, 100));
 
     const searchLower = this.searchTerm.toLowerCase().trim();
 
-      if (this.entityType === "people") {
     this.filteredEntities = (this.entities as Contact[])
       .filter((contact: Contact) => {
         const name = contact.name?.toLowerCase() || "";
@@ -505,25 +654,9 @@ export default class EntityGrid extends Vue {
         const nameB = (b.name || b.did).toLowerCase();
         return nameA.localeCompare(nameB);
       });
-      } else {
-        this.filteredEntities = (this.entities as PlanData[])
-          .filter((project: PlanData) => {
-            const name = project.name?.toLowerCase() || "";
-            const handleId = project.handleId.toLowerCase();
-            return name.includes(searchLower) || handleId.includes(searchLower);
-          })
-          .sort((a: PlanData, b: PlanData) => {
-            // Sort alphabetically by name
-            return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
-          });
-      }
 
-      // Reset displayed count when search completes
+    // Contacts don't need pagination (complete list)
-      this.displayedCount = INITIAL_BATCH_SIZE;
+    this.searchBeforeId = undefined;
-      this.infiniteScrollReset?.();
-    } finally {
-      this.isSearching = false;
-    }
   }
 
   /**
@@ -534,6 +667,7 @@ export default class EntityGrid extends Vue {
     this.filteredEntities = [];
     this.isSearching = false;
     this.displayedCount = INITIAL_BATCH_SIZE;
+    this.searchBeforeId = undefined;
     this.infiniteScrollReset?.();
 
     // Clear any pending timeout
@@ -553,13 +687,27 @@ export default class EntityGrid extends Vue {
     }
 
     if (this.searchTerm.trim()) {
-      // Search mode: check filtered entities
+      // Search mode: check if more results available
+      if (this.entityType === "projects") {
+        // Projects: can load more if:
+        // 1. We have more already-loaded results to show, OR
+        // 2. We've shown all loaded results AND there's a searchBeforeId to load more
+        const hasMoreLoaded =
+          this.displayedCount < this.filteredEntities.length;
+        const canLoadMoreFromServer =
+          this.displayedCount >= this.filteredEntities.length &&
+          !!this.searchBeforeId &&
+          !this.isLoadingSearchMore;
+        return hasMoreLoaded || canLoadMoreFromServer;
+      } else {
+        // Contacts: client-side filtering returns all results at once
         return this.displayedCount < this.filteredEntities.length;
       }
+    }
 
+    // Non-search mode: existing logic
     if (this.entityType === "projects") {
-      // Projects: if we've shown all loaded entities, callback handles server-side availability
+      // Projects: if we've shown all loaded entities and callback exists, callback handles server-side availability
-      // If callback exists and we've reached the end, assume more might be available
       if (
         this.displayedCount >= this.entities.length &&
         this.loadMoreCallback
@@ -579,7 +727,13 @@ export default class EntityGrid extends Vue {
   /**
    * Initialize infinite scroll on mount
    */
-  mounted(): void {
+  async mounted(): Promise<void> {
+    // Load apiServer for project searches
+    if (this.entityType === "projects") {
+      const settings = await this.$accountSettings();
+      this.apiServer = settings.apiServer || "";
+    }
+
     this.$nextTick(() => {
       const container = this.$refs.scrollContainer as HTMLElement;
 
@@ -587,6 +741,36 @@ export default class EntityGrid extends Vue {
         const { reset } = useInfiniteScroll(
           container,
           async () => {
+            // Search mode: handle search pagination
+            if (this.searchTerm.trim()) {
+              if (this.entityType === "projects") {
+                // Projects: load more search results if available
+                if (
+                  this.displayedCount >= this.filteredEntities.length &&
+                  this.searchBeforeId &&
+                  !this.isLoadingSearchMore
+                ) {
+                  this.isLoadingSearchMore = true;
+                  try {
+                    await this.performProjectSearch(this.searchBeforeId);
+                    // After loading more, reset scroll state to allow further loading
+                    this.infiniteScrollReset?.();
+                  } catch (error) {
+                    logger.error("Error loading more search results:", error);
+                    // Error already handled in performProjectSearch
+                  } finally {
+                    this.isLoadingSearchMore = false;
+                  }
+                } else {
+                  // Show more from already-loaded search results
+                  this.displayedCount += INCREMENT_SIZE;
+                }
+              } else {
+                // Contacts: show more from already-filtered results
+                this.displayedCount += INCREMENT_SIZE;
+              }
+            } else {
+              // Non-search mode: existing logic
               // For projects: if we've shown all entities and callback exists, call it
               if (
                 this.entityType === "projects" &&
@@ -610,6 +794,7 @@ export default class EntityGrid extends Vue {
                 // Normal case: increment displayedCount to show more from memory
                 this.displayedCount += INCREMENT_SIZE;
               }
+            }
           },
           {
             distance: 50, // pixels from bottom
@@ -635,19 +820,27 @@ export default class EntityGrid extends Vue {
   }
 
   /**
-   * Watch for changes in search term to reset displayed count
+   * Watch for changes in search term to reset displayed count and pagination
    */
   @Watch("searchTerm")
   onSearchTermChange(): void {
+    // Reset displayed count and pagination when search term changes
     this.displayedCount = INITIAL_BATCH_SIZE;
+    this.searchBeforeId = undefined;
     this.infiniteScrollReset?.();
   }
 
   /**
-   * Watch for changes in entities prop to reset displayed count
+   * Watch for changes in entities prop to clear search and reset displayed count
    */
   @Watch("entities")
   onEntitiesChange(): void {
+    // Clear search when entities change (fresh dialog open)
+    if (this.searchTerm) {
+      this.searchTerm = "";
+      this.filteredEntities = [];
+      this.searchBeforeId = undefined;
+    }
     this.displayedCount = INITIAL_BATCH_SIZE;
     this.infiniteScrollReset?.();
   }