improvement(landing): scope navbar/footer to (shell) route group, align scoped 404s with root

[waleedlatif1]

Summary

• Move integrations and models page routes into a (shell) route group so the Navbar+Footer layout wraps pages but not not-found.tsx. Route URLs are unchanged — route groups are URL-transparent.
• Extract a shared <NotFoundView> component (Navbar + <AuthBackground> + centered "Page not found" + return-home link) used by the root app/not-found.tsx and the scoped (landing)/integrations/not-found.tsx and (landing)/models/not-found.tsx.
• Net effect: /models/foo/bar/baz and /integrations/xyz now render the same 404 treatment as /rand (root). Previously they sat inside the landing CTA footer with no decorative background.

Why

Before this, scoped 404s rendered through IntegrationsLayout / ModelsLayout, which include the landing <Footer> ("What should we get done?" CTA). That made invalid routes under /integrations/* and /models/* look visually inconsistent with /rand and any other top-level 404.

The Next.js-idiomatic fix is to scope the Navbar+Footer shell to the actual pages via a (shell) route group, leaving not-found.tsx to render under just the minimal (landing)/layout.tsx — free to wrap itself in the same <AuthBackground> + Navbar treatment as the root.

Test plan

• Visit /integrations/xyz-not-real and /models/anthropic/not-real — expect the same look as /rand (Navbar + grid background + centered "Page not found" + Return to Home, no footer)
• Visit /integrations, /integrations/[valid-slug], /models, /models/[provider], /models/[provider]/[model] — expect Navbar + Footer shell still present, content unchanged
• Verify URLs are unchanged (route groups are URL-transparent)
• Verify og-images still resolve at /models/opengraph-image, /models/[provider]/opengraph-image, /models/[provider]/[model]/opengraph-image

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Project	Deployment	Actions	Updated (UTC)
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[cursor]

PR Summary

Medium Risk
Medium risk because it restructures Next.js App Router route groups/layout boundaries for /integrations and /models, which can subtly affect rendering, metadata, and 404 handling despite unchanged URLs.

Overview
Extracts a shared async NotFoundView (with AuthBackground + Navbar and a return-home CTA) and switches the root, /integrations, and /modelsnot-found.tsx handlers to reuse it for consistent full-viewport 404 styling.

Moves the integrations index/detail pages under an (shell) route group and updates imports accordingly, so the Navbar/Footer shell applies to normal pages while scoped 404s render outside that shell (matching the root 404 treatment).

^{Reviewed by Cursor Bugbot for commit 4bbf211. Configure here.}

[greptile-apps]

Greptile Summary

This PR restructures the landing-surface routing by moving /integrations and /models pages into a (shell) route group so the Navbar+Footer layout applies only to valid pages, while scoped not-found.tsx files remain outside (shell) and therefore render the root 404 treatment. A new shared NotFoundView server component consolidates the duplicated 404 markup (Navbar + AuthBackground + centered message) across the root, integrations, and models 404 pages. All import paths in moved files are correctly updated to absolute @/ aliases.

Confidence Score: 5/5

Safe to merge — structural rename with no logic changes, correct import path updates, and clean deduplication.

All changed files are either pure renames (100% similarity) or trivial delegations to the new NotFoundView component. Import paths are correctly updated to @/ aliases after the move. No P0/P1 findings exist.

No files require special attention.

Important Files Changed

Filename	Overview
apps/sim/app/(landing)/components/not-found-view.tsx	New shared async server component that consolidates the full 404 UI (Navbar + AuthBackground + centered message) previously duplicated across root and scoped not-found files.
apps/sim/app/not-found.tsx	Root 404 page simplified from async to sync component delegating entirely to NotFoundView; metadata and robots directives preserved.
apps/sim/app/(landing)/integrations/(shell)/layout.tsx	Renamed from integrations/layout.tsx into (shell) route group; no content changes — Navbar+Footer shell now correctly excludes the sibling not-found.tsx.
apps/sim/app/(landing)/integrations/(shell)/page.tsx	Moved into (shell); relative imports correctly converted to absolute @/ aliases since shared components/data remain in the parent integrations/ directory.
apps/sim/app/(landing)/integrations/not-found.tsx	Replaced inline 404 markup with NotFoundView; now renders with Navbar + AuthBackground instead of the landing footer shell.
apps/sim/app/(landing)/models/not-found.tsx	Same as integrations not-found: replaced inline markup with NotFoundView for consistent 404 treatment.
apps/sim/app/(landing)/integrations/(shell)/[slug]/page.tsx	Moved into (shell)/[slug]/; intra-group component imports updated to include the (shell) path segment, which is correct since those component files also moved.
apps/sim/app/(landing)/models/(shell)/layout.tsx	Renamed from models/layout.tsx into (shell) route group; no content changes — same scoping benefit as integrations.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
A["(landing)/layout.tsx\nminimal wrapper"] --> B["integrations/"]
A --> C["models/"]
B --> B1["(shell)/layout.tsx\nNavbar + Footer"]
B --> B2["not-found.tsx\nNotFoundView"]
B1 --> B3["(shell)/page.tsx\n/integrations"]
B1 --> B4["(shell)/[slug]/page.tsx\n/integrations/:slug"]
C --> C1["(shell)/layout.tsx\nNavbar + Footer"]
C --> C2["not-found.tsx\nNotFoundView"]
C1 --> C3["(shell)/page.tsx\n/models"]
C1 --> C4["(shell)/[provider]/page.tsx\n/models/:provider"]
C1 --> C5["(shell)/[provider]/[model]/page.tsx\n/models/:p/:m"]
NF["app/not-found.tsx\nNotFoundView"] --> NFC["NotFoundView\nNavbar + AuthBackground\nno Footer"]
B2 --> NFC
C2 --> NFC
style NFC fill:#1a1a2e,color:#fff
style B2 fill:#162032,color:#fff
style C2 fill:#162032,color:#fff
style NF fill:#162032,color:#fff

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[waleedlatif1]

@greptile

[waleedlatif1]

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^{Reviewed by Cursor Bugbot for commit 4bbf211. Configure here.}