Move twenty-orm-v2 into twenty-orm, paths only (#24768)

## What

Second of the five PRs splitting #24759 (after #24761). This is the
paths-only move: `twenty-orm-v2/` merges into `twenty-orm/` with **no
identifier changes whatsoever**.

- The `datasource`, `error-handling`, `executor`, `query-builder`,
`sql`, `table-shape`, `repository`, `utils` and `exceptions` contents
move under `twenty-orm/`, and file names lose their `-v2`.
- The `global-workspace-datasource/` folder dissolves into the
`twenty-orm` root (manager, module, cache service, and its two type
files into `twenty-orm/types/`).
- Every other change is an import-specifier rewrite. The diff outside
the moved files is +328/−328: strictly one-line path swaps.

Review rule: every hunk either renames a file or changes the string
`src/engine/twenty-orm-v2/…` (or `…/global-workspace-datasource/…`) to
its new location. No class, type, function or property changes name;
those come next in the sequence.

## Notes for CI

- Ten committed upgrade commands get import-path rewrites only, so the
PR carries the `ci:allow-previous-version-upgrade-mutation` label.
- CodeQL may flag the moved `build-column-result-alias.util.ts` as a
"new" weak-crypto alert: the SHA-1 there truncates SQL result aliases
past Postgres's 63-byte identifier limit (mirroring TypeORM's
`DriverUtils.buildAlias`), not a security use. The same alert was
dismissed as a false positive on the reference PRs.
- Translation catalogs are untouched; their source-path comments refresh
through the automated i18n extraction.

## Coming next

Core class de-suffixing, then the manager and module rename, then the
internal leftovers.

## Verification

- `tsgo --noEmit` clean, `oxlint --type-aware` clean on the 217 changed
files, `oxfmt --check src/` clean
- All twenty-orm unit suites pass (405 tests)


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