prel init, the three registrations in one command has been fixed.

See more details at : https://github.com/pdulvp/prel/issues/1

• prel init register sets up the hooks, the skill and the memories at once: the three were independent, and missing one left the issue filing inert without a word
• prel init status reports all three, plus what the next commit would file
• prel init unregister keeps the skill: ~/.claude/skills is shared, so dropping it for one repository would break every other
• prel hooks status added: core.hooksPath, a hook git cannot execute, and what commit.cleanup does to a #12 subject
• init_skills register and init_memory register exited 0 after refusing a conflicting file, reporting a half-registration as a success

_{Filed by prel from the completed plans at commit time.}