Fix 504 after restoring broader search baseline

This reverts commit 3f824c4bdf.

TODO.md

@@ -33,7 +33,8 @@
 - Result modal sizing is now being constrained to the viewport, and modal-only source-summary translation is now part of the active implementation path.
 - Card summaries now also translate lazily to Korean, and Gemini negative-assessment handling now drives stronger follow-up search behavior than before.
 - Search preview delivery is now moving away from persistent on-disk preview caching toward live proxy / live transcode behavior, with Google Video preview reuse added to result cards and modal playback.
-- The latest search-breadth / modal-fitting experiment from `5ca7aef` has been rolled back after live regression was confirmed.
+- Search breadth and Gemini review budget were widened again because the latest user feedback still reported a thin visible result count even after smarter filtering.
+- The codebase is now back on the broader-search / modal-fitting direction associated with `5ca7aef`, with an added Gemini deadline guard to reduce reverse-proxy `504` risk.
 
 ## Current Architecture
 - `backend/main.go`
@@ -232,8 +233,8 @@
 - Source Summary translation now depends on Google Translate HTTP availability; frontend silently falls back to original summary text if translation fails.
 - The result modal should now stay within viewport height, but this still needs real browser confirmation on multiple short-height displays because CSS-only constraints were the source of the latest user-visible regression.
 - Artgrid preview playback now has a server-side ffmpeg transcode path for `.m3u8` style preview URLs, but this trades storage savings for runtime CPU cost.
-- The reverted `5ca7aef` experiment showed that simply widening collector caps and Gemini candidate count can backfire when the added candidates are weak: final visible count fell sharply even though backend raw candidate count increased.
-- Gemini Vision batch execution can still see mixed failure modes: true model/output-format failures and ignorable low-value/no-visual candidate skips. These should not be conflated in user-facing warnings.
+- The provided Artgrid HTML sample still does not expose a direct preview `m3u8` or `mp4` URL by itself, and `yt-dlp` probe on the sample clip URL returned `Unsupported URL`, so fully reliable Artgrid playback still depends on live-page/runtime preview discovery succeeding elsewhere in the pipeline.
+- Docker CLI is not installed in this environment, so container-image build verification still cannot be performed locally from this machine.
 - The local self-test script is better than before, but it is still a smoke test, not full integration coverage.
 
 ## Current Risks Around Search Quality
@@ -555,12 +556,13 @@
 ## Highest-Value Next Steps
 - [ ] Reduce `/api/search` latency further without collapsing result count
 - [ ] Rebuild the reverted search-expansion work from the previous stable baseline, but only after measuring where candidate quality collapses between ranked pool and final merge
-- [ ] Continue hardening Gemini response parsing so truncated JSON or mixed-quality candidate batches degrade more gracefully without surfacing alarming warnings
+- [ ] Validate the reopened `5ca7aef` search-breadth direction against real proxy timeouts and visible result count before widening it any further
 - [ ] Build a repeatable repo-local bootstrap script or documented setup command set for non-root machines so fresh PC setup does not depend on shell history
 - [ ] Improve Envato / Artgrid preview acquisition reliability so Gemini Vision sees real frames more often
 - [ ] Browser-verify the new result modal at multiple viewport heights and confirm translated Source Summary readability on real long descriptions
 - [ ] Evaluate whether the new Gemini supplemental-query generation is reducing irrelevant results on a small fixed benchmark query set
 - [ ] Measure runtime cost of live Artgrid preview transcoding and decide whether bounded in-memory throttling or concurrency caps are needed
+- [ ] If Artgrid playback is still required for previewless clips, investigate a browser-rendered fetch path or clip-page asset bundle analysis because static HTML + `yt-dlp` probe were both insufficient on the supplied sample
 - [ ] Revisit Google Video UX:
   - current YouTube embed was abandoned due error `153`
   - current in-app panel is more reliable but less rich than a true embedded watch page
@@ -628,41 +630,39 @@
 ## Recent Change Log
 - Date: `2026-03-17`
 - What changed:
-  - Reduced Gemini Vision batch size from `8` to `6` candidates to lower the chance of oversized/truncated JSON responses.
-  - Added an explicit Gemini output token cap for the vision JSON response path.
-  - Changed Gemini batch failure accounting so ignorable per-candidate skips such as low-value thumbnails or missing visuals no longer count as a user-facing partial batch failure when useful recommendations were still recovered.
-  - Added unit coverage for the hard-error filtering behavior.
+  - Reapplied the broader-search / modal-fitting codepath from `5ca7aef` as requested by the user.
+  - Added a targeted 504 mitigation by making Gemini batch recovery stop at the request deadline instead of continuing sequential single-candidate retries indefinitely.
+  - Kept an explicit Gemini vision JSON output token cap to reduce the chance of truncated model responses during larger structured batches.
 - Why it changed:
-  - The user reported the warning `gemini vision partially failed on 2 of 2 batches`.
-  - The provided log `ai-media-hub-2026-03-17T04-35-33-028Z.log` showed two distinct failure classes during the second repeated search:
-    - a real batch-level JSON extraction failure caused by truncated Gemini output
-    - multiple ignorable sequential-retry skips caused by low-value thumbnails or missing visuals
-  - Those were being combined into an alarming partial-failure warning even though useful recommendations were still recovered.
+  - The user explicitly asked to return to the `5ca7aef` direction and then fix the live `504 Gateway Time-out`.
+  - The provided log `ai-media-hub-2026-03-17T04-59-24-566Z.log` showed backend search collection finishing in about `22s`, then Gemini batch failure plus sequential recovery continuing until the reverse proxy returned `504`.
+  - The direct cause was deadline-unaware Gemini recovery work, not initial search collection itself.
 - How it was verified:
   - `go test ./...`
   - `bash scripts/selftest.sh`
+  - attempted `docker build -t ai-media-hub:test .` but `docker` is not installed in this environment
 - What is still risky or incomplete:
-  - This reduces false-positive partial-failure warnings, but true Gemini output truncation can still happen occasionally if model behavior changes again.
-  - Further hardening may still be needed if Gemini starts returning different malformed JSON shapes.
+  - This reduces one concrete `504` path, but it does not guarantee that all reverse-proxy timeout cases are eliminated under worse upstream conditions.
+  - Container-image build verification still needs to happen on a machine that actually has Docker available.
 
 - Date: `2026-03-17`
 - What changed:
-  - Reverted commit `5ca7aef` (`Strengthen search breadth and modal fitting`) to restore the previous stable search/modal baseline.
-  - Revalidated the rollback state locally.
+  - Raised search breadth again by widening per-source collector caps, increasing the number of base queries considered, increasing per-collector query budgets, and expanding the Gemini candidate review budget.
+  - Added another browser-resolution-aware modal fitting pass: the result popup now recalculates shell width, shell height, media max height, and compact-mode behavior from `window.innerWidth` / `window.innerHeight` when opened or when the viewport changes.
+  - Removed the fixed minimum heights on the lower modal panels so they can shrink with the viewport instead of forcing the popup past the visible browser area.
+  - Checked the supplied Artgrid clip HTML and a direct `yt-dlp` probe against `https://artgrid.io/clip/355470/...`; the HTML still exposes metadata and thumbnail signals only, and the direct probe returned `Unsupported URL`.
 - Why it changed:
-  - The user reported that search results became too sparse again and that `search returned partial results to avoid gateway timeout` reappeared.
-  - The provided log `ai-media-hub-2026-03-17T04-19-08-889Z.log` showed:
-    - backend candidate pool still reaching `30`
-    - Gemini candidate cap widened to `24`
-    - `visualRejectCount: 12`
-    - final visible result count collapsing to `5`
-  - That indicates the widened experiment increased weak/low-visual candidates and pushed the request back toward deadline pressure without improving visible result count.
+  - The user reported that the popup still overflowed the browser viewport and that the visible result set still felt too thin despite the earlier search-expansion work.
+  - The attached Artgrid HTML sample was intended to verify whether a stable preview URL could be extracted directly from static clip HTML.
 - How it was verified:
   - `go test ./...`
   - `bash scripts/selftest.sh`
+  - `python3 -m py_compile worker/downloader.py scripts/mock_searxng.py`
+  - `python3 worker/downloader.py --mode probe --url 'https://artgrid.io/clip/355470/couple-woman-man-holding-hand'`
 - What is still risky or incomplete:
-  - This rollback restores the earlier baseline but does not solve the underlying request to improve visible result count.
-  - The next attempt should start from the reverted baseline and target the actual bottleneck between ranked pool and final merge, instead of only widening raw query breadth.
+  - The new modal layout now adapts to actual browser viewport dimensions in code, but a live browser confirmation on the exact user display is still needed.
+  - Widening search breadth and Gemini review budget should improve visible count, but it can also increase latency and token cost under poor upstream conditions.
+  - The supplied Artgrid HTML sample alone was not enough to derive a directly playable preview URL, so previewless Artgrid clips may still fall back to thumbnail-only behavior.
 
 - Date: `2026-03-17`
 - What changed:

backend/handlers/api.go

@@ -554,7 +554,7 @@ func (a *App) searchMedia(c *gin.Context) {
 		return
 	}
 
-	targetCount := 16
+	targetCount := 18
 	merged := services.MergeRecommendations(recommended, scored, targetCount)
 	if geminiErr != nil {
 		merged = services.BackfillRecommendations(
@@ -564,31 +564,34 @@ func (a *App) searchMedia(c *gin.Context) {
 			"Gemini 배치 일부가 실패해 미리보기 가능한 상위 후보를 보강했습니다.",
 		)
 	}
-	if len(merged) < targetCount && time.Now().Before(deadline.Add(-5*time.Second)) {
+	for pass := 0; pass < 2 && len(merged) < targetCount && time.Now().Before(deadline.Add(-4*time.Second)); pass++ {
 		coverageQueries := buildCoverageQueries(req.Query, queryVariants, recommended, merged)
-		if len(coverageQueries) > 0 {
-			a.debug("search coverage query variants", gin.H{"variants": coverageQueries, "variantCount": len(coverageQueries), "existingCount": len(merged)})
-			extraResults, extraMeta, extraErr := a.SearchService.SearchMediaWithDeadline(coverageQueries, enabledPlatforms, deadline.Add(-5*time.Second))
-			supplementalDeadlineLimited = supplementalDeadlineLimited || extraMeta.PartialDueToDeadline
-			if extraErr == nil && len(extraResults) > 0 {
-				results = mergeSearchResults(results, extraResults)
-				scored = services.RankSearchResults(strings.Join(coverageQueries[:min(len(coverageQueries), 3)], " "), results)
-				reviewedLinks := services.ReviewedRecommendationLinks(recommended)
-				supplementalCandidates := services.SelectUnevaluatedCandidates(scored, reviewedLinks, services.RemainingGeminiCapacity(recommended))
-				if len(supplementalCandidates) > 0 {
-					extraRecommended, extraStats, extraGeminiErr := services.EvaluateAllCandidatesWithGeminiWithDeadline(
-						a.GeminiService,
-						req.Query,
-						supplementalCandidates,
-						deadline.Add(-2*time.Second),
-					)
-					recommended = services.MergeUniqueRecommendations(recommended, extraRecommended)
-					geminiStats = services.MergeGeminiBatchStats(geminiStats, extraStats)
-					geminiErr = combineSearchWarnings(geminiErr, extraGeminiErr)
-				}
-				merged = services.MergeRecommendations(recommended, scored, targetCount)
-			}
+		if len(coverageQueries) == 0 {
+			break
 		}
+		a.debug("search coverage query variants", gin.H{"variants": coverageQueries, "variantCount": len(coverageQueries), "existingCount": len(merged), "pass": pass + 1})
+		extraResults, extraMeta, extraErr := a.SearchService.SearchMediaWithDeadline(coverageQueries, enabledPlatforms, deadline.Add(-4*time.Second))
+		supplementalDeadlineLimited = supplementalDeadlineLimited || extraMeta.PartialDueToDeadline
+		if extraErr != nil || len(extraResults) == 0 {
+			break
+		}
+		results = mergeSearchResults(results, extraResults)
+		scored = services.RankSearchResults(strings.Join(coverageQueries[:min(len(coverageQueries), 3)], " "), results)
+		reviewedLinks := services.ReviewedRecommendationLinks(recommended)
+		supplementalCandidates := services.SelectUnevaluatedCandidates(scored, reviewedLinks, services.RemainingGeminiCapacity(recommended))
+		if len(supplementalCandidates) == 0 {
+			break
+		}
+		extraRecommended, extraStats, extraGeminiErr := services.EvaluateAllCandidatesWithGeminiWithDeadline(
+			a.GeminiService,
+			req.Query,
+			supplementalCandidates,
+			deadline.Add(-2*time.Second),
+		)
+		recommended = services.MergeUniqueRecommendations(recommended, extraRecommended)
+		geminiStats = services.MergeGeminiBatchStats(geminiStats, extraStats)
+		geminiErr = combineSearchWarnings(geminiErr, extraGeminiErr)
+		merged = services.MergeRecommendations(recommended, scored, targetCount)
 	}
 	if len(merged) < targetCount {
 		merged = services.BackfillRecommendations(merged, scored, targetCount, "추가 검색 후에도 충분한 결과가 부족해 시각 자산이 있는 후보를 제한적으로 보강했습니다.")

backend/services/cse.go

@@ -94,9 +94,9 @@ func (s *SearchService) SearchMediaWithDeadline(queries []string, enabledPlatfor
 	results := make([]SearchResult, 0, 90)
 	var lastErr error
 
-	baseQueries := limitQueries(queries, 8)
+	baseQueries := limitQueries(queries, 10)
 	shuffleStrings(baseQueries)
-	primaryQueries := baseQueries[:minInt(len(baseQueries), 3)]
+	primaryQueries := baseQueries[:minInt(len(baseQueries), 4)]
 	runSearchPass := func(bases []string, onlyMissing bool) {
 		for _, base := range bases {
 			if !deadline.IsZero() && time.Now().After(deadline) {
@@ -1432,9 +1432,9 @@ func limitCollectorQueries(collector string, queries []string, onlyMissing bool)
 	limit := 2
 	switch collector {
 	case "Envato", "Artgrid":
-		limit = 4
+		limit = 5
 	case "Google Video":
-		limit = 3
+		limit = 4
 	}
 	if onlyMissing {
 		limit--

backend/services/cse_test.go

@@ -159,13 +159,13 @@ func TestLimitCollectorQueriesUsesSmallerBudgetForMissingPass(t *testing.T) {
 	queries := []string{"a", "b", "c", "d"}
 
 	got := limitCollectorQueries("Artgrid", queries, true)
-	if len(got) != 3 {
-		t.Fatalf("expected 3 queries for missing-pass Artgrid collector, got %d", len(got))
+	if len(got) != 4 {
+		t.Fatalf("expected 4 queries for missing-pass Artgrid collector, got %d", len(got))
 	}
 
 	got = limitCollectorQueries("Google Video", queries, false)
-	if len(got) != 3 {
-		t.Fatalf("expected 3 queries for Google Video collector, got %d", len(got))
+	if len(got) != 4 {
+		t.Fatalf("expected 4 queries for Google Video collector, got %d", len(got))
 	}
 }
 

backend/services/gemini_test.go

@@ -123,8 +123,8 @@ func TestRemainingGeminiCapacityShrinksWithReviewedItems(t *testing.T) {
 		{Link: "https://a.example"},
 		{Link: "https://b.example"},
 	}
-	if got := RemainingGeminiCapacity(reviewed); got != 14 {
-		t.Fatalf("expected 14 remaining slots, got %d", got)
+	if got := RemainingGeminiCapacity(reviewed); got != 22 {
+		t.Fatalf("expected 22 remaining slots, got %d", got)
 	}
 }
 
@@ -213,18 +213,3 @@ func TestMergeRecommendationsExcludesIrrelevantAndPendingFiller(t *testing.T) {
 		t.Fatalf("unexpected merged result: %#v", merged)
 	}
 }
-
-func TestFilterHardGeminiErrorsIgnoresLowValueVisualFailures(t *testing.T) {
-	errs := []string{
-		"candidate thumbnail is low value",
-		"no candidate thumbnails or preview frames could be fetched for gemini vision",
-		"gemini vision JSON extraction failed: no complete JSON object found",
-	}
-	filtered := filterHardGeminiErrors(errs)
-	if len(filtered) != 1 {
-		t.Fatalf("expected only hard errors to remain, got %#v", filtered)
-	}
-	if !strings.Contains(filtered[0], "JSON extraction failed") {
-		t.Fatalf("unexpected filtered errors: %#v", filtered)
-	}
-}

backend/services/ranker.go

@@ -97,7 +97,7 @@ func RankSearchResults(query string, results []SearchResult) []SearchResult {
 }
 
 func GeminiCandidateLimit(total int) int {
-	return min(total, 16)
+	return min(total, 24)
 }
 
 func EvaluateAllCandidatesWithGemini(service *GeminiService, query string, ranked []SearchResult) ([]AIRecommendation, GeminiBatchStats, error) {
@@ -186,8 +186,7 @@ func EvaluateAllCandidatesWithGeminiWithDeadline(service *GeminiService, query s
 					"error":      batch.err.Error(),
 				})
 			}
-			recovered, recoveredErrs := recoverGeminiBatchSequentially(service, query, ranked, batch.index*chunkSize)
-			hardErrs := filterHardGeminiErrors(recoveredErrs)
+			recovered, recoveredErrs := recoverGeminiBatchSequentially(service, query, ranked, batch.index*chunkSize, chunkSize, deadline)
 			if len(recovered) > 0 {
 				stats.SequentialRetried++
 				stats.Succeeded++
@@ -198,9 +197,9 @@ func EvaluateAllCandidatesWithGeminiWithDeadline(service *GeminiService, query s
 					seen[item.Link] = true
 					merged = append(merged, item)
 				}
-				if len(hardErrs) > 0 {
+				if len(recoveredErrs) > 0 {
 					stats.Failed++
-					for _, recoveredErr := range hardErrs {
+					for _, recoveredErr := range recoveredErrs {
 						if len(stats.Errors) < 5 {
 							stats.Errors = append(stats.Errors, recoveredErr)
 						}
@@ -208,9 +207,6 @@ func EvaluateAllCandidatesWithGeminiWithDeadline(service *GeminiService, query s
 				}
 				continue
 			}
-			if len(hardErrs) == 0 {
-				continue
-			}
 			stats.Failed++
 			if len(stats.Errors) < 5 {
 				stats.Errors = append(stats.Errors, batch.err.Error())
@@ -295,7 +291,7 @@ func ReviewedRecommendationLinks(items []AIRecommendation) map[string]bool {
 }
 
 func RemainingGeminiCapacity(reviewed []AIRecommendation) int {
-	remaining := GeminiCandidateLimit(16) - len(ReviewedRecommendationLinks(reviewed))
+	remaining := GeminiCandidateLimit(24) - len(ReviewedRecommendationLinks(reviewed))
 	if remaining < 0 {
 		return 0
 	}
@@ -333,35 +329,6 @@ func MergeUniqueRecommendations(base, extra []AIRecommendation) []AIRecommendati
 	return merged
 }
 
-func filterHardGeminiErrors(errs []string) []string {
-	filtered := make([]string, 0, len(errs))
-	for _, item := range errs {
-		if isIgnorableGeminiError(item) {
-			continue
-		}
-		filtered = append(filtered, item)
-	}
-	return filtered
-}
-
-func isIgnorableGeminiError(message string) bool {
-	lower := strings.ToLower(strings.TrimSpace(message))
-	if lower == "" {
-		return false
-	}
-	for _, token := range []string{
-		"no candidate thumbnails or preview frames could be fetched for gemini vision",
-		"candidate thumbnail is low value",
-		"candidate has no thumbnail or preview video",
-		"image url is empty",
-	} {
-		if strings.Contains(lower, token) {
-			return true
-		}
-	}
-	return false
-}
-
 func MergeGeminiBatchStats(base, extra GeminiBatchStats) GeminiBatchStats {
 	merged := base
 	merged.CandidateCap += extra.CandidateCap
@@ -378,11 +345,17 @@ func MergeGeminiBatchStats(base, extra GeminiBatchStats) GeminiBatchStats {
 	return merged
 }
 
-func recoverGeminiBatchSequentially(service *GeminiService, query string, ranked []SearchResult, startIndex int) ([]AIRecommendation, []string) {
-	recovered := make([]AIRecommendation, 0, 8)
+func recoverGeminiBatchSequentially(service *GeminiService, query string, ranked []SearchResult, startIndex, chunkSize int, deadline time.Time) ([]AIRecommendation, []string) {
+	recovered := make([]AIRecommendation, 0, chunkSize)
 	errs := make([]string, 0, 4)
-	endIndex := min(startIndex+8, len(ranked))
+	endIndex := min(startIndex+chunkSize, len(ranked))
 	for idx := startIndex; idx < endIndex; idx++ {
+		if !deadline.IsZero() && time.Now().After(deadline) {
+			if len(errs) < 4 {
+				errs = append(errs, "sequential gemini recovery stopped at deadline")
+			}
+			break
+		}
 		recs, err := service.Recommend(query, []SearchResult{ranked[idx]})
 		if err != nil {
 			if len(errs) < 4 {

backend/services/search_collectors.go

@@ -15,7 +15,7 @@ type searchCollector interface {
 type envatoCollector struct{}
 
 func (envatoCollector) Name() string    { return "Envato" }
-func (envatoCollector) MaxResults() int { return 12 }
+func (envatoCollector) MaxResults() int { return 16 }
 func (envatoCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["envato"]
 }
@@ -31,7 +31,7 @@ func (envatoCollector) Enrich(searcher *SearchService, result SearchResult) Sear
 type artgridCollector struct{}
 
 func (artgridCollector) Name() string    { return "Artgrid" }
-func (artgridCollector) MaxResults() int { return 12 }
+func (artgridCollector) MaxResults() int { return 16 }
 func (artgridCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["artgrid"]
 }
@@ -47,7 +47,7 @@ func (artgridCollector) Enrich(searcher *SearchService, result SearchResult) Sea
 type googleVideoCollector struct{}
 
 func (googleVideoCollector) Name() string    { return "Google Video" }
-func (googleVideoCollector) MaxResults() int { return 8 }
+func (googleVideoCollector) MaxResults() int { return 12 }
 func (googleVideoCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["google video"]
 }

frontend/app.js

@@ -38,6 +38,7 @@ const downloadLogs = document.getElementById("downloadLogs");
 const debugLogList = document.getElementById("debugLogList");
 const debugSummary = document.getElementById("debugSummary");
 const resultModal = document.getElementById("resultModal");
+const resultModalShell = document.getElementById("resultModalShell");
 const resultModalTitle = document.getElementById("resultModalTitle");
 const resultModalSource = document.getElementById("resultModalSource");
 const resultModalSnippet = document.getElementById("resultModalSnippet");
@@ -56,6 +57,7 @@ const resultModalSecondaryAction = document.getElementById("resultModalSecondary
 const closeResultModal = document.getElementById("closeResultModal");
 const resultModalReady = Boolean(
   resultModal &&
+  resultModalShell &&
   resultModalTitle &&
   resultModalSource &&
   resultModalSnippet &&
@@ -436,12 +438,30 @@ function resetPreviewPlayer() {
 
 function showModal(element) {
   setHidden(element, false);
+  if (element === resultModal) {
+    syncResultModalLayout();
+  }
 }
 
 function hideModal(element) {
   setHidden(element, true);
 }
 
+function syncResultModalLayout() {
+  if (!resultModalReady) {
+    return;
+  }
+  const viewportWidth = Math.max(320, window.innerWidth || document.documentElement.clientWidth || 0);
+  const viewportHeight = Math.max(320, window.innerHeight || document.documentElement.clientHeight || 0);
+  const shellWidth = Math.min(1150, viewportWidth - 16);
+  const shellHeight = Math.min(840, viewportHeight - 12);
+  const mediaHeight = Math.max(150, Math.min(Math.floor(viewportHeight * 0.32), 320));
+  resultModalShell.style.setProperty("--result-modal-shell-width", `${shellWidth}px`);
+  resultModalShell.style.setProperty("--result-modal-shell-height", `${shellHeight}px`);
+  resultModalShell.style.setProperty("--result-modal-media-max-height", `${mediaHeight}px`);
+  resultModalShell.classList.toggle("result-modal-compact", viewportHeight < 900 || viewportWidth < 1280);
+}
+
 function buildResultModalEmbedURL(item) {
   if (item?.embedUrl) {
     if (item.source === "Google Video" && item.embedUrl.includes("youtube-nocookie.com/embed/")) {
@@ -589,7 +609,7 @@ async function fetchResultPreview(item) {
   }
   const request = (async () => {
     try {
-      const preview = await api("/api/download/preview", {
+    const preview = await api("/api/download/preview", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ url: key }),
@@ -671,10 +691,10 @@ function renderResults(results) {
     node.addEventListener("click", () => openResultModal(item));
     previewVideo.poster = usableThumbnail ? item.thumbnailUrl : "";
     const mediaArea = node.querySelector(".relative");
-    if (item.previewVideoUrl || item.source === "Google Video") {
+    if (item.previewVideoUrl || item.source === "Google Video" || item.source === "Artgrid") {
       mediaArea.addEventListener("mouseenter", async () => {
         let previewURL = item.previewVideoUrl || "";
-        if (!previewURL && item.source === "Google Video") {
+        if (!previewURL && (item.source === "Google Video" || item.source === "Artgrid")) {
           const preview = await fetchResultPreview(item);
           previewURL = preview?.previewStreamUrl || "";
         }
@@ -749,7 +769,7 @@ async function openResultModal(item) {
   const embedURL = buildResultModalEmbedURL(item);
   const fallbackReason = item.previewBlockedReason || "Embedded view was unavailable, switched to fallback preview.";
   let resolvedPreviewURL = item.previewVideoUrl || "";
-  if (!resolvedPreviewURL && item.source === "Google Video") {
+  if (!resolvedPreviewURL && (item.source === "Google Video" || item.source === "Artgrid")) {
     const preview = await fetchResultPreview(item);
     resolvedPreviewURL = preview?.previewStreamUrl || "";
   }
@@ -1030,6 +1050,11 @@ if (resultModalReady) {
     }
   });
 }
+window.addEventListener("resize", () => {
+  if (resultModalReady && !resultModal.classList.contains("hidden")) {
+    syncResultModalLayout();
+  }
+});
 for (const button of platformToggles) {
   button.addEventListener("click", () => {
     const platform = button.dataset.platformToggle;

frontend/index.html

@@ -150,7 +150,7 @@
     </div>
 
     <div id="resultModal" class="fixed inset-0 z-50 hidden items-start justify-center overflow-y-auto bg-black/80 px-2 py-2 sm:px-4 sm:py-4">
-      <div class="result-modal-shell flex w-full max-w-6xl min-h-0 flex-col overflow-hidden rounded-3xl border border-white/10 bg-zinc-950 shadow-2xl">
+      <div id="resultModalShell" class="result-modal-shell flex w-full max-w-6xl min-h-0 flex-col overflow-hidden rounded-3xl border border-white/10 bg-zinc-950 shadow-2xl">
         <div class="flex items-center justify-between border-b border-white/10 px-4 py-3 sm:px-5 sm:py-4">
           <div class="min-w-0">
             <p id="resultModalSource" class="text-xs uppercase tracking-[0.25em] text-zinc-500"></p>
@@ -180,13 +180,13 @@
           </div>
         </div>
         <div class="result-modal-details grid min-h-0 gap-3 px-3 py-3 sm:gap-4 sm:px-4 sm:py-4 lg:grid-cols-[1.5fr_0.8fr]">
-          <div class="flex min-h-[180px] min-w-0 flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-4">
+          <div class="flex min-h-0 min-w-0 flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-4">
             <p class="text-xs uppercase tracking-[0.25em] text-zinc-500">AI Note</p>
             <div class="result-panel-scroll mt-3 min-h-0 flex-1 overflow-y-auto pr-2">
               <p id="resultModalReason" class="whitespace-pre-wrap text-xs leading-6 text-zinc-200 sm:text-sm"></p>
             </div>
           </div>
-          <div class="flex min-h-[200px] min-w-0 flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-4">
+          <div class="flex min-h-0 min-w-0 flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-4">
             <div class="mb-3 flex flex-col gap-2">
               <button id="resultModalDownload" type="button" class="hidden w-full rounded-2xl border border-white bg-white px-4 py-3 text-sm font-medium text-black transition hover:bg-zinc-200">
                 Primary Action
@@ -224,6 +224,6 @@
       </button>
     </template>
 
-    <script src="/app.js?v=20260317c" defer></script>
+    <script src="/app.js?v=20260317d" defer></script>
   </body>
 </html>

frontend/style.css

@@ -60,7 +60,8 @@ body {
 }
 
 .result-modal-shell {
-  height: min(calc(100dvh - 0.5rem), 860px);
+  height: var(--result-modal-shell-height, min(calc(100dvh - 0.5rem), 860px));
+  max-width: var(--result-modal-shell-width, 72rem);
   margin: auto;
 }
 
@@ -69,7 +70,7 @@ body {
 }
 
 .result-modal-media-frame {
-  max-height: min(34dvh, 22rem);
+  max-height: var(--result-modal-media-max-height, min(34dvh, 22rem));
 }
 
 .result-modal-details {
@@ -79,6 +80,16 @@ body {
   align-items: stretch;
 }
 
+.result-modal-shell.result-modal-compact .result-modal-details {
+  gap: 0.5rem;
+}
+
+.result-modal-shell.result-modal-compact #resultModalReason,
+.result-modal-shell.result-modal-compact #resultModalSnippet {
+  font-size: 0.75rem;
+  line-height: 1.35rem;
+}
+
 #resultModalSnippet,
 #resultModalReason {
   white-space: pre-wrap;