Accept providerNamespace on createRepository to create in a GitLab group

[HarshMN2345]

Summary

The namespaces endpoint and listRepositories namespace support (merged in #12951) let you browse a GitLab group's repos, but createRepository still always resolved the owner from the installation itself -- so a GitLab user with groups had no way to create a new repo inside a group, only in their personal namespace.

This mirrors the listRepositories fix: adds an optional providerNamespace param to createRepository, threaded through to OAuth2Gitlab::createRepository() as GitLab's namespace_id. Also widens Github/Gitea OAuth2 createRepository() signatures with the same optional (no-op) param so the call site doesn't need a provider-specific branch.

Test plan

• composer format && composer analyze (done locally, clean)
• E2E: create a repo with providerNamespace set to a GitLab group, verify it lands in the group not the personal namespace
• E2E: create a repo without providerNamespace, verify unchanged personal-namespace behavior for GitHub/Gitea/GitLab

[greptile-apps]

Greptile Summary

Adds namespace-aware repository creation by forwarding an optional provider namespace through the VCS endpoint and GitLab OAuth client, while preserving no-op compatibility for GitHub and Gitea OAuth clients.

• Extends OAuth repository-creation signatures with an optional namespace identifier.
• Sends GitLab’s namespace identifier as namespace_id.
• Uses the requested namespace as the owner for adapter-backed repository creation.

Confidence Score: 5/5

The PR appears safe to merge because no additional blocking failure eligible for this follow-up review remains.

No blocking failure remains beyond the issues already covered by the previous review threads.

Important Files Changed

Filename	Overview
src/Appwrite/Auth/OAuth2/Gitea.php	Adds an optional, intentionally unused namespace argument for interface compatibility.
src/Appwrite/Auth/OAuth2/Github.php	Adds an optional, intentionally unused namespace argument for interface compatibility.
src/Appwrite/Auth/OAuth2/Gitlab.php	Adds optional GitLab namespace targeting through the project-creation payload.
src/Appwrite/Platform/Modules/VCS/Http/Installations/Repositories/Create.php	Accepts and forwards an optional provider namespace through personal OAuth and adapter-backed repository creation paths.

_{Reviews (2): Last reviewed commit: "Accept providerNamespace on createReposi..." | Re-trigger Greptile}

[github-actions]

✨ Benchmark results

Comparing main (before) → feat/vcs-gitlab-list-namespaces (after).

Metric	Before	After	Change
🚀 Requests/sec	220.66	220.67	⚪ 0%
⏱️ Latency P50	65.16 ms	65.43 ms	⚪ +0.4%
⏱️ Latency P95	229.22 ms	227.5 ms	⚪ -0.8%

Per-scenario breakdown & investigation details

Metrics below reflect the current branch (after). Δ P95 compares against the base.

Scenario	P50 (ms)	P95 (ms)	Requests	RPS	Δ P95 (ms)
API total	65.43	227.5	13,737	220.67	-1.72
Account	124.43	338.59	723	12.1	+34.64
TablesDB	62.33	206.46	7,471	121.61	-7.25
Storage	58.72	208.14	3,615	60.84	+1.31
Functions	100.29	284.39	1,928	33.09	+8.89

Top API waits (after)

API request	Max wait (ms)
functions.variables.create	889.68
tablesdb.rows.update	693.58
tablesdb.rows.create	691.45
account.name.update	683.44
tablesdb.rows.decrement	579.58