PCG: raise the Atomic rollout to 2% (#51463)

The guardian's first real production exposure went out at 1% with #51392,
once the bucket was fixed to use the WP.com blog ID. Step it to 2%.

Bucketing is stable, so this only adds sites — the existing 1% cohort stays
enrolled. The constant lives in wpcomsh so the change rides the twice-daily
Atomic platform deploy rather than waiting on a package release.

Claude-Session: https://claude.ai/code/session_01WKCBBDBCobbqvM5XWfGaeZ

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/32816682803

Upstream-Ref: Automattic/jetpack@baeec88

Author: arthur791004

CHANGELOG.md

@@ -58,6 +58,7 @@ This is an alpha version! The changes listed here are not final.
 - Move Custom CSS to Devcie Detection
 - Permalinks: make the Settings → Permalinks page available on all sites and remove the plan-based gating and upsell.
 - Plan expiry notices: sites on the new expiry notices no longer see the legacy plan-renewal admin notice.
+- Plugin Conflicts Guardian: raise the Atomic rollout to 2% of sites.
 - Podcast: split the Distribution directories into Automatic and Manual submission, explain why a disabled button is disabled, and link to your Pocket Casts show once it is live.
 - Podcasting: flip jetpack_podcast_untangle globally on Atomic so every WoA site moves to the new jetpack-podcast package (parallel to the wpcom-side flip already live on Simple).
 - Podcasting: only load the legacy at-pressable-podcasting plugin when the new jetpack-podcast package is not taking over the feature.

plugin-conflicts-guardian-rollout.php

@@ -10,7 +10,7 @@
  * Percentage of Atomic sites the guardian runs on, 0-100. Raising it only
  * ever adds sites; 0 turns it off.
  */
-const WPCOMSH_PCG_ROLLOUT_PERCENTAGE = 1;
+const WPCOMSH_PCG_ROLLOUT_PERCENTAGE = 2;
 
 add_filter(
 	'pcg_rollout_percentage',

vendor/composer/autoload_files.php

@@ -12,9 +12,9 @@
     '293c13b83c57dba3ffcaf4c9d7af49fc' => $vendorDir . '/wp-php-toolkit/encoding/utf8.php',
     'c2c7ec202e84a85f19abab25dd38d82d' => $vendorDir . '/wp-php-toolkit/encoding/compat-utf8.php',
     '713ad46f1f515216614131421c1ab59c' => $vendorDir . '/wp-php-toolkit/encoding/utf8-encoder.php',
+    '3ece6d8ef10b1c2fd398a0c341044be9' => $vendorDir . '/wp-php-toolkit/data-liberation/URL/functions.php',
     '320cde22f66dd4f5d3fd621d3e88b98f' => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php',
     '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
-    '3ece6d8ef10b1c2fd398a0c341044be9' => $vendorDir . '/wp-php-toolkit/data-liberation/URL/functions.php',
     'ec471f3ca20b4a3001a1f5146b94c5d9' => $vendorDir . '/wp-php-toolkit/reprint-exporter/src/utils.php',
     '700e9f220ab8246703a73d0e5d5d9192' => $vendorDir . '/automattic/wc-calypso-bridge/wc-calypso-bridge.php',
 );

vendor/composer/autoload_static.php

@@ -13,9 +13,9 @@ class ComposerStaticInit26841ac2064774301cbe06d174833bfc_wpcomshⓥ10_0_0_alpha
         '293c13b83c57dba3ffcaf4c9d7af49fc' => __DIR__ . '/..' . '/wp-php-toolkit/encoding/utf8.php',
         'c2c7ec202e84a85f19abab25dd38d82d' => __DIR__ . '/..' . '/wp-php-toolkit/encoding/compat-utf8.php',
         '713ad46f1f515216614131421c1ab59c' => __DIR__ . '/..' . '/wp-php-toolkit/encoding/utf8-encoder.php',
+        '3ece6d8ef10b1c2fd398a0c341044be9' => __DIR__ . '/..' . '/wp-php-toolkit/data-liberation/URL/functions.php',
         '320cde22f66dd4f5d3fd621d3e88b98f' => __DIR__ . '/..' . '/symfony/polyfill-ctype/bootstrap.php',
         '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => __DIR__ . '/..' . '/symfony/polyfill-mbstring/bootstrap.php',
-        '3ece6d8ef10b1c2fd398a0c341044be9' => __DIR__ . '/..' . '/wp-php-toolkit/data-liberation/URL/functions.php',
         'ec471f3ca20b4a3001a1f5146b94c5d9' => __DIR__ . '/..' . '/wp-php-toolkit/reprint-exporter/src/utils.php',
         '700e9f220ab8246703a73d0e5d5d9192' => __DIR__ . '/..' . '/automattic/wc-calypso-bridge/wc-calypso-bridge.php',
     );

vendor/composer/jetpack_autoload_filemap.php

@@ -30,6 +30,10 @@
 		'version' => '0.6.2.0',
 		'path'    => $vendorDir . '/wp-php-toolkit/encoding/utf8-encoder.php'
 	),
+	'3ece6d8ef10b1c2fd398a0c341044be9' => array(
+		'version' => '0.6.2.0',
+		'path'    => $vendorDir . '/wp-php-toolkit/data-liberation/URL/functions.php'
+	),
 	'320cde22f66dd4f5d3fd621d3e88b98f' => array(
 		'version' => '1.37.0.0',
 		'path'    => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php'
@@ -38,10 +42,6 @@
 		'version' => '1.38.2.0',
 		'path'    => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php'
 	),
-	'3ece6d8ef10b1c2fd398a0c341044be9' => array(
-		'version' => '0.6.2.0',
-		'path'    => $vendorDir . '/wp-php-toolkit/data-liberation/URL/functions.php'
-	),
 	'ec471f3ca20b4a3001a1f5146b94c5d9' => array(
 		'version' => '0.1.47.0',
 		'path'    => $vendorDir . '/wp-php-toolkit/reprint-exporter/src/utils.php'