feature: add status pill column to Tests list

[TheWitness]

Summary

Adds a Status column to the Tests list (servcheck_test.php → data_list()), placed immediately after the Name column, that renders each service check's current state as a colour-coded pill.

This mirrors the status-pill treatment being added to plugin_thold, giving the Tests list an at-a-glance status indicator that complements the existing subtle row tint and the status legend footer.

Details

• New Status column inserted right after Name in the data_list() $display_text definition (non-sortable, since the state is derived in PHP rather than from a single DB column).
• Pill rendering: the per-row state is already computed into $style (servcheck_ok, servcheck_error, servcheck_warning, servcheck_failing, servcheck_duration, servcheck_disabled). The pill reuses that state key to look up its human label from $servcheck_states and renders <span class="servcheck_pill servcheck_<state>">Label</span>.
• CSS (css/common.css): new .servcheck_pill badge styling that reuses the solid legend colours so the pill stays legible on top of the subtle row tint on every bundled theme. Compound selectors (.servcheck_pill.servcheck_<state>) keep a higher specificity than the per-theme single-class row tints, so the badge colour always wins without needing per-theme overrides.
• Drive-by fix: corrected a missing closing quote in the Tests-list <tr> tag (class='tableRow selectable $style id='...' → class='tableRow selectable $style' id='...') so the row id attribute (used by row-selection JS) is emitted correctly.

Testing

• php -l servcheck_test.php — no syntax errors.
• CSS-only change otherwise; pill labels/colours match the existing status legend.

[Copilot]

🟡 Changes recommended

The translation template is missing the new label, and the success pill does not meet minimum text contrast.

2 open findings

• Success pill text fails WCAG AA contrast · New
• Add Status key to gettext template · New

What changed in this PR

Adds an at-a-glance status pill to the Tests list and corrects row markup.

Changes:

• Adds a translated Status column and state pills.
• Adds pill styling using existing state colors.
• Documents the feature in the changelog.

File	Description
servcheck_test.php	Renders the Status column and fixes row attributes.
css/​common.css	Styles color-coded status pills.
CHANGELOG.md	Records the new status column.

🧠 Review effort: Balanced

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