feat(410): the skills own the full reflexes, in words any client can read (#4029)

Step 2 of milestone 410 "One owner per piece of guidance". Skills are the
part of every client package shared verbatim (Agent Skills, decision #4027),
so they state each reflex in full and name no particular client.

using-scribe gains what only the static session context said:
- a retrieved rule outranks a default habit; ask when no rule speaks to it
- log on completing a task and on hitting a problem, not only successes
- the systems_hint on an untagged record is the tagging question, answered
  at the moment of work

Client-specific text leaves the skills, rewritten as the universal idea:
- using-scribe: "keep one copy" no longer names CLAUDE.md, MEMORY.md, native
  auto-memory or autoMemoryEnabled; "this plugin" becomes Scribe
- reusing-code / shape-accounting: Write/Edit and Bash become editor tools
  and shell edits; the prior-art "hook" becomes the prior-art hint; a plugin
  version number is dropped

tests/test_guidance_ownership.py:
- test_the_skills_name_no_particular_client fails on any Claude Code path,
  memory file, slash command, hook event or tool name in a skill, each
  marker commented with why it is client-specific; a companion test shows
  it can fail
- three registry topics for what using-scribe now owns; the loss guard
  stays green

Plugin version minted.

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

plugin/.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "scribe",
   "description": "Scribe system-of-record for Claude Code: MCP tools over your notes/tasks/projects/rules, a session-start push channel that surfaces your active-project context, process-skills (writing-plans, reporting-back, systematic-debugging, verification, brainstorming, reusing-code), and your saved Scribe Processes auto-surfaced as skills (/scribe:sync). Replaces superpowers + file-memory with one app-backed plugin.",
-  "version": "2026.09.14.1438",
+  "version": "2026.09.14.1550",
   "author": {
     "name": "Bryan Van Deusen"
   },