fix(catalog): stat-linja for repo-mailbox 927 -> 978

Pluginens badge leser selftest_checks-978 ved 0.35.0 (fem suiter:
coord 257 + board 478 + route 73 + orders 116 + guard 54 = 978).
Katalogen sa 927. Badgen er kilden; katalogen rettes til den.

Ett tall paa README.md:235; resten av raden er urort.

Ordre 20260917T221924Z-6958712598-from-repo-mailbox, steg 2.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

README.md

@@ -232,7 +232,7 @@ A local mailbox for coordination between Claude Code sessions in different repos
 - **`route`** — turns four scored traits of the next task into a model/effort row from a closed six-row rubric, with a pasteable startup command and a one-row-cheaper fallback
 - **`dispatch`** — hands work to a session in another repo as a complete, verified startup command: the prompt written to a file, model and effort derived from the rubric, output form chosen by whether the target repo already has a terminal pane
 
-1 hook · 4 skills · 8 CLI scripts · 927 selftest checks · [Full documentation →](https://git.fromaitochitta.com/open/repo-mailbox)
+1 hook · 4 skills · 8 CLI scripts · 978 selftest checks · [Full documentation →](https://git.fromaitochitta.com/open/repo-mailbox)
 
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