fix(canvas): raise Claw skill tag limit

lib/canvas-skill-tags.ts

@@ -225,7 +225,7 @@ function appendMissingCanvasSkillTags(
   return [
     ...tags,
     ...additions.filter((tag) => !existingIds.has(tag.id)),
-  ].slice(0, 30);
+  ].slice(0, 50);
 }
 
 export function normalizeCanvasSkillTags(value: unknown): CanvasSkillTag[] {
@@ -261,7 +261,7 @@ export function normalizeCanvasSkillTags(value: unknown): CanvasSkillTag[] {
     return DEFAULT_CANVAS_SKILL_TAGS;
   }
 
-  return normalized.slice(0, 30);
+  return normalized.slice(0, 50);
 }
 
 export function normalizeCanvasSkillTagSettings(

tests/routes/admin-settings.test.ts

@@ -216,6 +216,23 @@ test.describe.serial("/api/admin/settings", () => {
     expect(normalized.tags).toEqual(customTags);
   });
 
+  test("canvas skill tag settings retain more than thirty configured skills", () => {
+    const configuredTags: CanvasSkillTag[] = Array.from({ length: 31 }, (_, index) => ({
+      id: `configured-skill-${index + 1}`,
+      name: `Configured skill ${index + 1}`,
+      prompt: `Run configured skill ${index + 1}`,
+    }));
+
+    const normalized = normalizeCanvasSkillTagSettings({
+      enabled: true,
+      title: "Claw 快捷技能",
+      tags: configuredTags,
+      version: CANVAS_SKILL_TAGS_CONFIG_VERSION,
+    });
+
+    expect(normalized.tags).toEqual(configuredTags);
+  });
+
   test("canvas skill tags still use defaults when no stored setting exists", () => {
     const normalized = normalizeCanvasSkillTagSettings(null, {
       requireCurrentVersion: true,