fix: style --ap-address and --handle identity-token modifiers (issue 163 Part B)

[kraftbj]

Summary

Resolves Part B of issue 163 — the leftover unstyled identity-token modifier classes called out by the PR 161 maintainability review.

Part A of the issue (handle-shape defense moved into Bluesky_Provider::get_status(), plus its unit test) is already on trunk and not part of this PR.

What this PR ships

CSS: style the --ap-address and --handle modifiers

src/Admin/assets/css/admin.css had a font-weight: 500 rule for .fosse-token--host / .fosse-admin-token--host. The matching modifiers for --ap-address and --handle were being emitted by every call site (class-ap-provider.php, class-bluesky-provider.php, class-onboarding-wizard.php) and pinned by regex assertions in Onboarding_WizardTest.php, but no stylesheet rule honored them. They were load-bearing for tests yet invisible to users — the worst of both worlds.

Extended the existing selector list to include all six emitted variants:

.fosse-token--ap-address,
.fosse-admin-token--ap-address,
.fosse-status-card__token--ap-address,
.fosse-token--handle,
.fosse-admin-token--handle,
.fosse-status-card__token--handle,
.fosse-token--host,
.fosse-admin-token--host {
    font-weight: 500;
}

The fosse-status-card__token--* variants are included because grep against the source tree confirmed class-ap-provider.php and class-bluesky-provider.php both emit them on real render paths. No status-card variant of --host is emitted anywhere, so it's deliberately absent from the rule.

Test: extend the data-provider contract guard

tests/php/Admin/Admin_CSS_Test.php has test_identity_token_modifiers_have_css_rules, a data-provider-driven test built precisely to catch the "class emitted in PHP but missing from admin.css" gap this PR is fixing. The provider only listed --host. Extended it to include all six newly-styled selectors so future accidental deletion of any of them fails a test instead of slipping through silently. PHPUnit confirms: 9 tests, 18 assertions, all green.

What this PR does not do

The code-review pass caught one additional concern that's intentionally out of scope:

• --did and --url modifier classes are also unstyled. They're emitted at four call sites in class-bluesky-provider.php (lines 429, 437, 801, 811) but have no CSS rule of their own. The issue body claimed they were already styled — that's stale info from before the CSS file was restructured. Adjacent to the now-styled --handle siblings in the same Bluesky status-card surface, the unstyled --did / --url will read as visually quieter, which may or may not be the right call (DIDs and URLs are opaque references, not identity strings — the typographic distinction is arguably correct). Worth a separate decision in its own follow-up, not silently in this one.

Test plan

• vendor/bin/phpunit --filter Admin_CSS_Test — 9 tests, 18 assertions
• vendor/bin/phpunit --filter Bluesky_ProviderTest — 131 tests, 345 assertions
• vendor/bin/phpunit --filter Onboarding_WizardTest — 106 tests, 414 assertions
• tools/vendor/bin/phpcs tests/php/Admin/Admin_CSS_Test.php — clean
• pnpm exec prettier --check src/Admin/assets/css/admin.css — clean
• Visual check in wp-admin — confirm @user.bsky.social handles and @user@example.com AP addresses render with the same bold treatment as host tokens

Review

Ran /ce-code-review (multi-agent) and /codex challenge (adversarial). Round 1 surfaced one cross-reviewer finding (the Admin_CSS_Test data provider gap, called out independently by correctness, testing, and maintainability) — addressed in this same PR. Codex challenge round returned no production failures. Single-reviewer --did/--url concern carried forward as a known follow-up above.

Fixes #163

[Copilot]

Pull request overview

Adds missing styling support for emitted identity-token modifier classes in the wp-admin UI, and extends the existing CSS contract test so future regressions (classes emitted in PHP but not styled) are caught automatically.

Changes:

• Extend admin.css to apply font-weight: 500 to --ap-address and --handle token modifiers (including status-card variants), matching existing --host behavior.
• Expand Admin_CSS_Test’s data provider to require CSS rules for the newly-styled modifier selectors.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
tests/php/Admin/Admin_CSS_Test.php	Extends the modifier-selector data provider to assert CSS rules exist for --handle and --ap-address (including status-card variants).
src/Admin/assets/css/admin.css	Adds --ap-address and --handle selectors to the existing font-weight: 500 modifier rule set.