Fix CI: PHP 8.1 compat + WPCS violations in v0.3.0 new files

PHP 8.1: Cannot use positional argument after argument unpacking —
  class-prv-call-log-query.php line 77 (LIMIT/OFFSET args merged into
  array before spread).

WPCS fixes across 8 files:
- class-prv-admin-page-css.php: short description capital letter
- class-prv-admin-page.php: docblock started on same line as closing brace
- class-prv-call-drawer-renderer.php: param spacing, empty elseif blocks,
  extra indent on render_inline_script
- class-prv-call-log-query.php: InterpolatedNotPrepared (use
  phpcs:disable/enable block for WHERE-clause interpolation)
- class-prv-cost-rollup-query.php: InterpolatedNotPrepared for GROUP BY
  with dynamic column (phpcs:disable/enable block)
- class-prv-costs-renderer.php: AssociativeArrayFound on inline sub-arrays
- class-prv-probe-run-executor.php: docblock spacing, empty catch blocks,
  inline array items, ArrayItemNoNewLine (phpcs:disable on write_meta calls)
- class-prv-probe-runner.php: extra space before ?? operator

includes/core/class-prv-admin-page.php

@@ -198,7 +198,9 @@ class PRV_Admin_Page {
 			)
 		);
 		echo '</p></div>';
-	}	/**
+	}
+
+	/**
 	 * Return the combined CSS string for all PR Vision admin screens.
 	 *
 	 * Delegates to PRV_Admin_Page_Css to keep this class under 300 lines.