feat(studio): manage datasource through the metadata-admin engine (drop bespoke page)

[xuyushun441-sys]

What

datasource is a metadata type, so it should be administered by the generic metadata-admin engine like every other type — not the hand-written DatasourceManagerPage/system/datasources route.

• Register datasource as a metadata-admin resource (registerMetadataResource) with a custom ListPage that ports the full manager: list / create / edit / delete / test / sync objects. It's a side-effectful type (secret encryption + connection pool + introspection), so create/edit/delete + test go through the framework datasource-admin REST (/api/v1/datasources/*), but it now lives inside the engine: engine route (…/component/metadata/resource?type=datasource), registry slot, shell. Sync creates objects via the engine's useMetadataClient.
• Delete the standalone DatasourceManagerPage + system/datasources route; repoint the System hub card + add an admin-nav "Datasources" item to the engine route.
• Fix MetadataRedirect/ObjectRedirect: they left a stray system/ segment, so system/metadata/:type 404'd — this also repairs the existing Object Manager link.

Pairs with

framework #2091 (Setup-app "Datasources" nav entry → this engine route).

Verification (live, browser)

Against the showcase + setup apps:

• ✅ Engine route renders the datasource manager (no bespoke page)
• ✅ Create eng_demo (sqlite) via the form → listed
• ✅ Sync → introspect customers/orders → create objects → real object metadata created (verified via /api/v1/meta/object)
• ✅ Setup app left menu → Datasources → opens this engine view

🤖 Generated with Claude Code

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
objectui	Ignored		Jun 21, 2026 5:22am

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✅ Console Performance Budget

Metric	Value	Budget
Main entry (gzip)	58.8 KB	350 KB
Entry file	index-BCUC_B17.js	—
Status	PASS	—

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📦 Bundle Size Report

Package	Size	Gzipped
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auth (AuthGuard.js)	1.17KB	0.53KB
auth (AuthProvider.js)	17.16KB	3.44KB
auth (AuthShell.js)	3.49KB	1.40KB
auth (ForgotPasswordForm.js)	4.79KB	1.88KB
auth (LoginForm.js)	5.11KB	1.92KB
auth (PreviewBanner.js)	0.90KB	0.50KB
auth (RegisterForm.js)	6.63KB	2.15KB
auth (SocialSignInButtons.js)	8.89KB	3.61KB
auth (UserMenu.js)	3.40KB	1.22KB
auth (authStyles.js)	5.04KB	1.72KB
auth (createAuthClient.js)	24.74KB	6.00KB
auth (createAuthenticatedFetch.js)	3.33KB	1.32KB
auth (index.js)	1.75KB	0.76KB
auth (types.js)	0.59KB	0.35KB
auth (useAuth.js)	4.01KB	0.79KB
auth (useIsWorkspaceAdmin.js)	1.28KB	0.70KB
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collaboration (PresenceProvider.js)	2.42KB	0.96KB
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collaboration (useMentionNotifications.js)	1.81KB	0.68KB
collaboration (usePresence.js)	6.33KB	1.84KB
collaboration (useRealtimeSubscription.js)	7.91KB	2.01KB
components (index.js)	414.34KB	87.93KB
core (index.js)	1.48KB	0.54KB
create-plugin (index.js)	9.28KB	2.98KB
data-objectstack (index.js)	97.05KB	24.16KB
fields (index.js)	158.94KB	38.06KB
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mobile (ResponsiveContainer.js)	0.94KB	0.38KB
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types (mobile.js)	0.20KB	0.18KB
types (navigation.js)	0.20KB	0.18KB
types (objectql.js)	0.20KB	0.18KB
types (overlay.js)	0.20KB	0.18KB
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types (plugin-scope.js)	0.20KB	0.18KB
types (record-components.js)	0.20KB	0.19KB
types (registry.js)	0.20KB	0.18KB
types (reports.js)	0.20KB	0.18KB
types (spec-report.js)	5.26KB	1.96KB
types (tenant.js)	0.20KB	0.18KB
types (theme.js)	0.20KB	0.18KB
types (ui-action.js)	0.75KB	0.46KB
types (views.js)	0.20KB	0.18KB
types (widget.js)	0.20KB	0.18KB

Size Limits

• ✅ Core packages should be < 50KB gzipped
• ✅ Component packages should be < 100KB gzipped
• ⚠️ Plugin packages should be < 150KB gzipped