Namespace company skill identities

Persist canonical namespaced skill keys, split adapter runtime names from skill keys, and update portability/import flows to carry the canonical identity end-to-end.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/shared/src/validators/adapter-skills.ts

@@ -16,7 +16,8 @@ export const agentSkillSyncModeSchema = z.enum([
 ]);
 
 export const agentSkillEntrySchema = z.object({
-  name: z.string().min(1),
+  key: z.string().min(1),
+  runtimeName: z.string().min(1).nullable(),
   desired: z.boolean(),
   managed: z.boolean(),
   required: z.boolean().optional(),