Only propose configured apps during onboarding install step (#22712)

## What

- Onboarding "Install your first apps" now proposes only apps that are
actually installable: it intersects the onboarding list with
`findManyMarketplaceApps`, which the backend already filters to listed +
configured apps (all required server variables set).
- If none are available, the step auto-skips. If the marketplace query
fails, it shows an intentional fallback (heading + Skip) instead of
silently skipping or rendering an empty install card.
- `findManyMarketplaceApps` now accepts `universalIdentifiers`, so
onboarding fetches and configuration-checks only its own apps instead of
the entire catalog.

## Why

Previously the step rendered all hardcoded apps regardless of
configuration, only borrowing logos from the marketplace, so a user
could be offered an app the admin never configured. This centralizes
onboarding availability on the marketplace's existing logic and keeps
the query bounded as the marketplace grows.

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packages/twenty-client-sdk/src/metadata/generated/schema.graphql

@@ -3151,7 +3151,7 @@ type Query {
   getViewGroup(id: String!): ViewGroup
   findManyApplications: [Application!]!
   findOneApplication(id: UUID, universalIdentifier: UUID): Application!
-  findManyMarketplaceApps: [MarketplaceApp!]!
+  findManyMarketplaceApps(universalIdentifiers: [String!]): [MarketplaceApp!]!
   findMarketplaceAppDetail(universalIdentifier: String!): MarketplaceAppDetail!
   publicMarketplaceApps(isVetted: Boolean! = true): [MarketplaceApp!]!
   publicMarketplaceAppDetail(universalIdentifier: String!): MarketplaceAppDetail!

packages/twenty-client-sdk/src/metadata/generated/schema.ts

@@ -5990,7 +5990,7 @@ export interface QueryGenqlSelection{
     getViewGroup?: (ViewGroupGenqlSelection & { __args: {id: Scalars['String']} })
     findManyApplications?: ApplicationGenqlSelection
     findOneApplication?: (ApplicationGenqlSelection & { __args?: {id?: (Scalars['UUID'] | null), universalIdentifier?: (Scalars['UUID'] | null)} })
-    findManyMarketplaceApps?: MarketplaceAppGenqlSelection
+    findManyMarketplaceApps?: (MarketplaceAppGenqlSelection & { __args?: {universalIdentifiers?: (Scalars['String'][] | null)} })
     findMarketplaceAppDetail?: (MarketplaceAppDetailGenqlSelection & { __args: {universalIdentifier: Scalars['String']} })
     publicMarketplaceApps?: (MarketplaceAppGenqlSelection & { __args: {isVetted: Scalars['Boolean']} })
     publicMarketplaceAppDetail?: (MarketplaceAppDetailGenqlSelection & { __args: {universalIdentifier: Scalars['String']} })

packages/twenty-client-sdk/src/metadata/generated/types.ts

@@ -6529,7 +6529,13 @@ export default {
                 }
             ],
             "findManyMarketplaceApps": [
-                228
+                228,
+                {
+                    "universalIdentifiers": [
+                        1,
+                        "[String!]"
+                    ]
+                }
             ],
             "findMarketplaceAppDetail": [
                 232,