fix: web search button not showing for models with web search capability

[amelitoalcuitas]

Summary by CodeRabbit

Bug Fixes

• Improved detection of AI model capabilities including reasoning and web search support across all providers
• Enhanced model identification and selection logic for better multi-provider configuration handling
• Better support for region-specific model identification in model selection

[coderabbitai]

Walkthrough

This PR refactors model capability detection for reasoning and web search. A new data contract extends ComboboxModel with optional reasoning and webSearch flags. The mapModels function computes and propagates these capabilities from provider mappings. The chat-page-client is refactored to determine feature support by reading these flags from mapped models instead of provider-mapping lookups.

Changes

Model Capability Flags Propagation

Layer / File(s)	Summary
Type Contract apps/playground/src/lib/types.ts	ComboboxModel interface extended with optional reasoning?: boolean and webSearch?: boolean fields.
Model Mapping Logic apps/playground/src/lib/mapmodels.ts	mapModels computes root-level capability flags (hasReasoning, hasWebSearch) across provider mappings, includes them in the "Auto" entry, introduces region-aware id construction for per-mapping entries, and propagates reasoning and webSearch from mappings to combobox items.
Client Refactoring apps/playground/src/components/playground/chat-page-client.tsx	Type imports updated to remove ApiModelProviderMapping; supportsReasoning and supportsWebSearch in both ChatPageClient and ExtraChatPanel refactored to search availableModels by id and read capability flags directly instead of consulting provider mappings.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly addresses the main fix: enabling the web search button for models with web search capability by refactoring capability checks to use the mapped models.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

🧹 Nitpick comments (1)

apps/playground/src/components/playground/chat-page-client.tsx (1)

344-350: ⚡ Quick win

Consider extracting the model lookup pattern into a helper function.

The same model lookup logic (exact ID match, then endsWith fallback) is repeated 8 times across ChatPageClient and ExtraChatPanel. A small helper would reduce duplication:

♻️ Optional refactor to reduce duplication

+const getModelCapability = (
+	availableModels: ComboboxModel[],
+	selectedModel: string,
+	capability: keyof Pick<ComboboxModel, 'vision' | 'imageGen' | 'reasoning' | 'webSearch'>,
+): boolean => {
+	let model = availableModels.find((m) => m.id === selectedModel);
+	if (!model && !selectedModel.includes("/")) {
+		model = availableModels.find((m) => m.id.endsWith(`/${selectedModel}`));
+	}
+	return !!model?.[capability];
+};

 const supportsImages = useMemo(() => {
-	let model = availableModels.find((m) => m.id === selectedModel);
-	if (!model && !selectedModel.includes("/")) {
-		model = availableModels.find((m) => m.id.endsWith(`/${selectedModel}`));
-	}
-	return !!model?.vision;
+	return getModelCapability(availableModels, selectedModel, 'vision');
 }, [availableModels, selectedModel]);

Also applies to: 352-358, 360-366, 368-374, 1293-1299, 1301-1307, 1309-1315, 1317-1323

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@apps/playground/src/components/playground/chat-page-client.tsx` around lines
344 - 350, Extract the repeated model lookup (exact match by id then fallback to
id.endsWith(`/selectedModel`)) into a single helper, e.g.,
getModelForSelected(availableModels, selectedModel), and replace the duplicated
logic in ChatPageClient (used by supportsImages) and ExtraChatPanel with calls
to that helper; ensure the helper returns the matched model (or undefined) so
existing checks like !!model?.vision continue to work and update all occurrences
referenced (the blocks around supportsImages and the four other locations) to
call getModelForSelected instead of repeating the find/endsWith logic.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@apps/playground/src/components/playground/chat-page-client.tsx`:
- Around line 344-350: Extract the repeated model lookup (exact match by id then
fallback to id.endsWith(`/selectedModel`)) into a single helper, e.g.,
getModelForSelected(availableModels, selectedModel), and replace the duplicated
logic in ChatPageClient (used by supportsImages) and ExtraChatPanel with calls
to that helper; ensure the helper returns the matched model (or undefined) so
existing checks like !!model?.vision continue to work and update all occurrences
referenced (the blocks around supportsImages and the four other locations) to
call getModelForSelected instead of repeating the find/endsWith logic.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: ce68a7f4-0914-4b00-b0b8-4282075b0f76

📥 Commits

Reviewing files that changed from the base of the PR and between 1e3b13f and 149716d.

📒 Files selected for processing (3)

• apps/playground/src/components/playground/chat-page-client.tsx
• apps/playground/src/lib/mapmodels.ts
• apps/playground/src/lib/types.ts