Fix Knex transaction errors in prod

[SpecialAro]

This commit tries to fix the spam on knex transaction errors not being closed which might be overloading the server CPU. Not sure if this works as it is kind of difficult to test it.

[Copilot]

Pull request overview

This PR aims to reduce production DB/Knex issues (transaction/connection pool pressure) by adjusting SQLite connection behavior, optimizing “hot path” queries, and adding a functional concurrency regression test.

Changes:

• Adjust SQLite pool/connection initialization (WAL, synchronous mode, busy timeout) and force a single shared SQLite connection.
• Add indexes on frequently queried columns in services, workspaces, and tokens.
• Refactor several endpoints to query Service/Workspace/Token directly (instead of relation queries) and add a concurrency-focused functional test for /user/data.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/functional/dashboard/data.spec.ts	Adds a functional test that performs concurrent /user/data requests to catch pool/connection exhaustion regressions.
database/migrations/1774667000000_add_database_hot_path_indexes.ts	Adds indexes intended to speed up common lookups and reduce DB load.
config/database.ts	Updates SQLite pool sizing and connection PRAGMAs to improve concurrency characteristics and reduce lock contention.
app/Models/User.ts	Refactors token lookup/creation to use Token.query() / Token.create() directly.
app/Controllers/Http/WorkspaceController.ts	Refactors workspace UUID check and workspace ordering computation (count query), plus orders workspace listing output.
app/Controllers/Http/ServiceController.ts	Introduces a shared “load user services” query and minor response shaping refactor.
app/Controllers/Http/Dashboard/ExportController.ts	Switches to direct Service/Workspace queries with stable ordering for exports.
app/Controllers/Http/Dashboard/DataController.ts	Switches to direct Service/Workspace queries with stable ordering and explicit empty arrays when unauthenticated.

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