feat(board): nested repos enter on a STATE.md, and the scan reports its nevner

Order 20260903T190201Z-238406410-from-.claude (.claude, operator decision
2026-09-03). A git repo nested under a depth-1 REPO was invisible: discovery
adds a depth-1 repo and stops, and the else-branch container scan - the only
place children are ever looked at - is unreachable for an entry that is itself
a repo. Measured before writing anything: 12 nested repos across the real tree,
exactly 1 with a STATE.md (from-ai-to-chitta/content-sadhguru), which had been
running work and reporting to nobody.

Admission is criterion (a) and nothing wider. add_nested_repos() sits beside
add_dot_repos(), never a widening of the `*` loops - the same argument ordre
20260818T124828Z made for dot repos, and the order made it again before this
repo wrote a line: routing a depth-1 repo into the container branch would admit
every vendored clone under claude-code-100x/. One level only; depth 3 is pinned
as NOT admitted. A dot-prefixed depth-1 repo gets the same nested scan, since
nothing in the criterion distinguishes it.

A nested repo now carries TWO names. The board KEY is <parent>/<child> as the
order specifies. The MAILBOX name is not that key: a mailbox is addressed by
basename(git toplevel), so $COORD/<parent>/<child>/inbox finds no directory and
INN/ORDRE/FLY would print 0 for a repo that may have mail - a failed
measurement wearing the reassuring value, in three columns at once. The record
loop carries `mbox` beside `name`; --voyage's order lookup takes
basename($vy_dir) for the same reason. Which dirs are nested is RECORDED by
discovery (NESTED_LIST), not re-derived from "is my parent a repo?", which
would prefix every depth-1 repo if a scan root were ever a checkout.

The denominator line is independent of all of that and went in regardless:
"undersoekt: N katalog(er) depth 1, M polyrepo-container(e), K nestede repo
(J med STATE.md tatt med)". The header count answers how many were found and
nothing about how many were looked at, so a criterion excluding 11 of 12 was
invisible at the surface built to show it. Real tree 2026-09-04: 43 / 5 / 12
(1 tatt med). A non-repo dot-dir counts in N and never in M - it is a
denominator, not a partition.

Its wording broke an existing check: "polyrepo container itself is not listed
as a repo" grepped the whole output for `polyrepo` and matched the footer's own
`polyrepo-container(e)` - the same class as a grep reading a comment that
EXPLAINS a pattern as an instance of it. Now anchored at column 1, which is
what it always meant.

Verified with board.sh, not from memory: from-ai-to-chitta/content-sadhguru
in-progress, Sonnet 5/high, and --plan gives it a real tab with paste=.
Mutation-verified: reverting the eight $COORD/$mbox reads turns exactly the
three mailbox checks red with the rest of the section green.

Bounded gaps, stated rather than closed: the mailbox-keyed JOINS ($OWED,
brief_orphans, --inbox-plan) still key on the board name - neither created nor
worsened here, since the repo was previously absent from RECORDS entirely; a
34-char key overflows the table's %-32s REPO column (same class as Fable
5.1/xhigh in KOST, and widening moves three cut -c89- helpers); a dot-prefixed
NESTED repo is not looked for.

board-selftest 368 -> 393. Suites: coord 257, board 393, route 73, orders 116,
guard 54 = 893. npm test 11/11.

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

skills/board/SKILL.md

@@ -23,7 +23,7 @@ description: >-
   user names no repo and no tool — choosing *between* repos is this skill. Not for
   "where were we" inside the current repo: that is this repo's own STATE.md,
   already injected at session start.
-version: "0.33.0"
+version: "0.33.1"
 ---
 
 # board — which repo deserves the next session