refactor: ChangeLog::recordPartial and column-size truncation

recordPartial() replaces the partial-log FollowUp blocks in content-create,
content-update and post-replace-with-copy; record() truncates ability,
object_type and object_id to their column sizes.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/ChangeLog/ChangeLog.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace LIT\MCP\ChangeLog;
 
+use LIT\MCP\Abilities\FollowUp;
 use LIT\MCP\Server\RequestContext;
 
 /**
@@ -44,9 +45,9 @@ class ChangeLog
                 'created_at' => current_time('mysql', true),
                 'user_id' => get_current_user_id(),
                 'client' => $this->sanitizedClientName(),
-                'ability' => $ability,
-                'object_type' => $objectType,
-                'object_id' => $objectId,
+                'ability' => mb_substr($ability, 0, 100),
+                'object_type' => mb_substr($objectType, 0, 50),
+                'object_id' => mb_substr($objectId, 0, 191),
                 'summary' => mb_substr($summary, 0, 500),
                 'revision_id' => $revisionId,
                 'snapshot_id' => $snapshotId,
@@ -64,6 +65,27 @@ class ChangeLog
         return (int) $wpdb->insert_id;
     }
 
+    /**
+     * Logs a write that failed and could not be rolled back completely (result "partial").
+     * Never throws: the caller is already reporting an error, a log failure only goes to
+     * the PHP error log.
+     */
+    public function recordPartial(
+        string $ability,
+        string $objectType,
+        string $objectId,
+        string $summary,
+        ?int $revisionId = null
+    ): void {
+        $ignored = [];
+        FollowUp::run(
+            fn () => $this->record($ability, $objectType, $objectId, $summary, $revisionId, null, 'partial'),
+            $ability . ' change log',
+            '',
+            $ignored
+        );
+    }
+
     public function purgeOlderThan(int $days): int
     {
         $wpdb = $this->db();

src/Integrations/WordPress/Content/ContentCreateAbility.php

@@ -204,12 +204,6 @@ final class ContentCreateAbility implements Ability
 
     private function logPartial(string $postType, string $postId, string $summary): void
     {
-        $ignored = [];
-        FollowUp::run(
-            fn () => $this->log->record($this->name(), $postType, $postId, $summary, null, null, 'partial'),
-            $this->name() . ' change log',
-            '',
-            $ignored
-        );
+        $this->log->recordPartial($this->name(), $postType, $postId, $summary);
     }
 }

src/Integrations/WordPress/Content/ContentUpdateAbility.php

@@ -247,20 +247,12 @@ final class ContentUpdateAbility implements Ability
             throw new WriteFailed(self::REASON, true, $postId, $revisionId, $cause, $detail);
         }
 
-        $ignored = [];
-        FollowUp::run(
-            fn () => $this->log->record(
-                $this->name(),
-                (string) $post->post_type,
-                (string) $postId,
-                sprintf('"%s": Änderung nur teilweise zurückgenommen', $post->post_title),
-                $revisionId,
-                null,
-                'partial'
-            ),
-            $this->name() . ' change log',
-            '',
-            $ignored
+        $this->log->recordPartial(
+            $this->name(),
+            (string) $post->post_type,
+            (string) $postId,
+            sprintf('"%s": Änderung nur teilweise zurückgenommen', $post->post_title),
+            $revisionId
         );
         throw new WriteFailed(
             self::REASON,

src/Integrations/WordPress/Status/PostReplaceWithCopyAbility.php

@@ -283,20 +283,12 @@ final class PostReplaceWithCopyAbility implements Ability
         try {
             $this->cloner->restore($original, $snapshot, $parts);
         } catch (Throwable $e) {
-            $ignored = [];
-            FollowUp::run(
-                fn () => $this->log->record(
-                    $this->name(),
-                    (string) $original->post_type,
-                    (string) $originalId,
-                    sprintf('"%s": Austausch nur teilweise zurückgenommen', $original->post_title),
-                    $revisionId,
-                    null,
-                    'partial'
-                ),
-                $this->name() . ' change log',
-                '',
-                $ignored
+            $this->log->recordPartial(
+                $this->name(),
+                (string) $original->post_type,
+                (string) $originalId,
+                sprintf('"%s": Austausch nur teilweise zurückgenommen', $original->post_title),
+                $revisionId
             );
             throw new WriteFailed(
                 self::REASON,