refactor(web): remove deprecated dashboard components and enhance KPI grid

- Deleted unused components: `DashboardActivityTimeline`, `DashboardFramePanel`, `DashboardModulesGrid`, `DashboardRecentJobsGrid`, and `DashboardRecentRevisionsGrid` to streamline the dashboard.
- Updated `DashboardKpiGrid` to improve KPI display logic, including progress indicators and enhanced badge functionality.
- Refactored `DashboardNetworkHealth` to provide better status representation based on loading states and network conditions.
- Introduced new properties for KPI cards to support progress tracking and improved visual feedback.

This cleanup aims to enhance performance and maintainability of the dashboard while providing a better user experience.

internal/pipeline/cdn_snapshot.go

@@ -42,32 +42,49 @@ func mergeSnapshotDropSource(rows []store.PrefixRow, sourceKey string) []store.P
 	return out
 }
 
-// mergeSnapshotDropCDNSources removes all cdn:* rows (used before batch CDN merge).
-func mergeSnapshotDropCDNSources(rows []store.PrefixRow) []store.PrefixRow {
-	if len(rows) == 0 {
-		return nil
+// mergeSnapshotKeepSkippedCDN keeps non-CDN rows and cdn:* rows whose source is still skipped
+// (not in fetchedSourceIDs). Deleted sources (absent from allSourceIDs) are dropped.
+func mergeSnapshotKeepSkippedCDN(rows []store.PrefixRow, fetchedSourceIDs, allSourceIDs []string) []store.PrefixRow {
+	fetched := make(map[string]struct{}, len(fetchedSourceIDs))
+	for _, id := range fetchedSourceIDs {
+		fetched[cdnSourceKey(id)] = struct{}{}
+	}
+	keepCDN := make(map[string]struct{})
+	for _, id := range allSourceIDs {
+		k := cdnSourceKey(id)
+		if _, ok := fetched[k]; !ok {
+			keepCDN[k] = struct{}{}
+		}
 	}
 	out := make([]store.PrefixRow, 0, len(rows))
 	for _, row := range rows {
-		if !strings.HasPrefix(strings.TrimSpace(row.Source), "cdn:") {
-			out = append(out, row)
+		src := strings.TrimSpace(row.Source)
+		if strings.HasPrefix(src, "cdn:") {
+			if _, ok := keepCDN[src]; !ok {
+				continue
+			}
 		}
+		out = append(out, row)
 	}
 	return out
 }
 
-// mergeAllCDNSourcesIntoModuleSnapshot replaces all CDN rows in one write (avoids parallel read-modify-write races).
-func mergeAllCDNSourcesIntoModuleSnapshot(st store.Backend, tenantID string, mod *store.Module, priorSnapshot []store.PrefixRow, cdnRows []store.PrefixRow) error {
+// mergeAllCDNSourcesIntoModuleSnapshot replaces fetched CDN source rows in one write.
+// skipped sources (errors with EVOBGP_CDN_PARTIAL_OK) keep their prior rows.
+func mergeAllCDNSourcesIntoModuleSnapshot(st store.Backend, tenantID string, mod *store.Module, priorSnapshot []store.PrefixRow, cdnRows []store.PrefixRow, fetchedSourceIDs, allSourceIDs []string) error {
 	if st == nil || mod == nil {
 		return nil
 	}
+	unlock := st.LockModuleSnapshot(tenantID, mod.ID)
+	defer unlock()
 	var base []store.PrefixRow
 	if len(priorSnapshot) > 0 {
-		base = mergeSnapshotDropCDNSources(priorSnapshot)
+		base = priorSnapshot
 	} else if snap, ok, _ := st.GetModulePrefixSnapshot(tenantID, mod.ID); ok && snap != nil {
-		base = mergeSnapshotDropCDNSources(snap.Prefixes)
+		base = snap.Prefixes
 	}
-	merged := append(base, cdnRows...)
+	kept := mergeSnapshotKeepSkippedCDN(base, fetchedSourceIDs, allSourceIDs)
+	merged := append(kept, cdnRows...)
 	return persistModuleSnapshot(st, tenantID, mod, merged)
 }
 
@@ -93,6 +110,8 @@ func mergeCDNSourceIntoModuleSnapshot(st store.Backend, tenantID string, mod *st
 	if st == nil || mod == nil {
 		return nil
 	}
+	unlock := st.LockModuleSnapshot(tenantID, mod.ID)
+	defer unlock()
 	sourceKey := cdnSourceKey(sourceID)
 	var base []store.PrefixRow
 	if snap, ok, _ := st.GetModulePrefixSnapshot(tenantID, mod.ID); ok && snap != nil {
@@ -114,81 +133,6 @@ func parseCDNBody(body string, src *store.CDNSource) ([]string, error) {
 	return out, nil
 }
 
-func applyCDNSourceHTTPResult(ctx context.Context, st store.Backend, hc *http.Client, tenantID, moduleID string, mod *store.Module, src *store.CDNSource, priorSnapshot []store.PrefixRow, now time.Time) ([]store.PrefixRow, error) {
-	u := strings.TrimSpace(src.URL)
-	if u == "" {
-		return nil, nil
-	}
-	if _, err := ValidateCDNURL(u); err != nil {
-		return nil, err
-	}
-	if err := ResolveCDNURLHost(ctx, u); err != nil {
-		return nil, err
-	}
-	sourceKey := cdnSourceKey(src.ID)
-	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
-	if err != nil {
-		return nil, err
-	}
-	if etag := strings.TrimSpace(src.Etag); etag != "" {
-		req.Header.Set("If-None-Match", etag)
-	}
-	resp, err := upstreamHTTPDo(ctx, hc, req)
-	if err != nil {
-		return nil, fmt.Errorf("cdn fetch %s: %w", u, err)
-	}
-
-	if resp.StatusCode == http.StatusNotModified {
-		if cached := cachedCDNPrefixRows(st, tenantID, moduleID, priorSnapshot, sourceKey); len(cached) > 0 {
-			_ = resp.Body.Close()
-			return cached, nil
-		}
-		// ETag is known but local snapshot is empty — force a full download.
-		_ = resp.Body.Close()
-		req2, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
-		if err != nil {
-			return nil, err
-		}
-		resp, err = upstreamHTTPDo(ctx, hc, req2)
-		if err != nil {
-			return nil, fmt.Errorf("cdn fetch %s: %w", u, err)
-		}
-		if resp.StatusCode == http.StatusNotModified {
-			_ = resp.Body.Close()
-			return nil, fmt.Errorf("cdn url %s: 304 without cached prefixes", u)
-		}
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	if resp.StatusCode != http.StatusOK {
-		_, _ = io.Copy(io.Discard, resp.Body)
-		return nil, fmt.Errorf("cdn url %s: %s", u, resp.Status)
-	}
-	body, err := io.ReadAll(io.LimitReader(resp.Body, 8<<20))
-	if err != nil {
-		return nil, err
-	}
-	prefixStrs, err := parseCDNBody(string(body), src)
-	if err != nil {
-		return nil, fmt.Errorf("cdn parse %s: %w", u, err)
-	}
-	etag := strings.TrimSpace(resp.Header.Get("ETag"))
-	patch := &store.CDNSourcePatch{}
-	if etag != "" && etag != strings.TrimSpace(src.Etag) {
-		e := etag
-		patch.Etag = &e
-	}
-	refreshedAt := now
-	patch.LastRefreshedAt = &refreshedAt
-	_, _ = st.UpdateCDNSource(tenantID, moduleID, src.ID, patch)
-
-	rows := cdnRowsFromParsed(mod, src, prefixStrs)
-	if err := mergeCDNSourceIntoModuleSnapshot(st, tenantID, mod, src.ID, rows); err != nil {
-		return nil, err
-	}
-	return rows, nil
-}
-
 // fetchCDNSourceRows loads CDN prefixes without persisting the module snapshot (caller merges once).
 func fetchCDNSourceRows(ctx context.Context, st store.Backend, hc *http.Client, tenantID, moduleID string, mod *store.Module, src *store.CDNSource, priorSnapshot []store.PrefixRow, now time.Time) ([]store.PrefixRow, error) {
 	u := strings.TrimSpace(src.URL)