feat(settings): implement IDelegatedSettings for password policy settings

[printminion-co]

Summary

Vanilla-clean extraction of the IONOS delegation patch carried in PR #2 (IONOS(admin-delegation): implement IDelegatedSettings for password policy, cherry-picked from b2ba6de), prepared per upstream-to-vanilla-app.md for contribution to nextcloud/password_policy.

OCA\Password_Policy\Settings\Settings changes from implements ISettings to implements IDelegatedSettings, adding getName() and getAuthorizedAppConfig() plus the IL10N constructor parameter they need. This is app-side only — no ncw-config ADMIN_DELEGATION_MAP registration is included, so it stands on its own upstream.

Why

Every NC major re-applies this same one-file patch onto the fork (v31, now v32 in PR #2, v33 next). Upstreaming it retires that delta permanently. Sibling of the already-open nextcloud/bruteforcesettings#1246.

Preparation notes

• Branched directly off nextcloud/password_policy:master; this fork's master mirror is currently identical to it, so the diff is exactly the one commit.
• Commit message reworded to Conventional Commits. No IONOS(...) prefix, no NSW/HDNEXT token, no fork-internal PR or SHA reference.
• Original author and Signed-off-by: Kai Henseler preserved; no sign-off added.
• #[\Override] added to the two new methods — the source commit predates them, but upstream's Settings.php marks getForm/getSection/getPriority with it, as does #1246.
• IL10N is autowired; no DI registration change is needed.

Verification

Run in the shared dev container (.dev/container/dev) from the ncw-server checkout:

• composer lint — clean
• composer cs:check — clean, 0 of 41 files need fixing
• composer psalm — could not run: the app's pinned Psalm requires PHP >= 8.3.16; the container has PHP 8.3.6. Pre-existing environment gap, identical for nc-activity, unrelated to this change. The known pre-existing DocblockTypeContradiction at lib/Validator/HIBPValidator.php:54 (reproduces on bare upstream) is still expected once Psalm can run, and is not addressed here.
• composer test:unit — could not run: the app's PHPUnit bootstrap requires an installed Nextcloud and the dev container instance is not installed. No test touches the settings class.

Related

• Jira: NSW-813 (upstreaming), NSW-946 (the v32 fork work that surfaced it)
• Server PR consuming the fork line: IONOS(update): update IONOS-owned app submodules for Nextcloud v32 (NSW-946) ncw-server#324
• NC32 fork release carrying the patch meanwhile: IONOS(password_policy): NC32 fork release (NSW-946) #2
• Upstream PR: to follow, into nextcloud/password_policy:master