The sixth of seven v1 units. A bench is a running thing, registered: identity
is the normalized URL so re-posting updates the row instead of appending a
fifth, `booth link` refuses the one shape that now has a better home, and the
board marks the rows whose booths are gone without deleting a single one.
Minor rather than patch, approved by the operator. Two capabilities arrived and
one verb changed behaviour for seventeen agent handles, which is the
push-notification bar in the tier test: `booth bench` is new, the board gained
a dead marker, and `booth link` now refuses a booth URL and a credentialed one.
444 -> 607 tests across the unit and its three cold gates. All four review
gates closed: an in-session seam review (three real contract defects, including
one that would have 404'd the whole board page), an in-session adversarial pass
(four defects, one of them this repo's own FIFO lesson recurring in a new
file), and three cold cross-frontier panels -- contract paraphrase, code-vs-
contract, and a diff-scoped bug hunt -- folded in full with exactly one finding
declined and its reasoning recorded.
Measured before contracted, and the measurement changed the unit: the design
doc's headline 69% rot was two defects wearing one number, and U5 had already
closed the larger half. Identity is the FULL normalized URL rather than the
origin because origin identity merges eight distinct gitea repositories, three
unrelated model cards, and the two LRPG surfaces the design doc itself names as
an example of two real benches.
Minor rather than patch, and the tie-break rule says default to patch, so the
reason is worth stating: a capability arrived AND one left. Report authors gain
a declared public API -- one line, `<script src="/_booth/embed.js" defer>`, plus
the `data-booth-mark` anchor syntax -- and the verbatim path loses
no-JavaScript operation, which it had since it existed.
That asymmetry is what makes it not a tie. Either half alone would have been
defensible as a patch.
Operator approved 2026-09-22.
A booth that ships its own index.html was served through ten regular
expressions applied to markup the Booth did not write: six in
wrap_verbatim_html hunting for somewhere to hang a favicon and a chip, four
in booth/inline.py substituting rendered ask markup into the author's own
tags. Both worked. Both were the most fragile thing in the service, on the
path the operator uses most.
The whole class is replaced by a declared seam. A report carries one line —
<script src="/_booth/embed.js" defer></script> — and the chrome mounts
through DOM APIs. What the server does to author HTML is now, in full:
return html if declares_embed(html) else html + EMBED_SCRIPT_TAG
Two substring tests and a concatenation. Both of the old wrapper's hard
constraints stop existing rather than being satisfied more carefully:
nothing can displace a leading doctype into quirks mode and nothing can push
the charset meta out of its detection window, because nothing in front of
them ever moves. A page that declares the seam is served exactly as written.
Fragments are still rendered by the _ask_inline.html macros and handed over
GET /b/<name>/embed.json; embed.js places them and decides nothing. Openness
comes from open_marks, order from (created, id), questions in declaration
order. A single-question pick normalizes to key None, so the payload carries
questions as a list rather than an object — keying by name would serialize
that as the string "null".
Placement is an anchor fill, not a replacement: el.insertAdjacentHTML(
'beforeend'), so an author's wrapper and its contents survive. The regex it
replaces was eating the opening tag of dfa-concepts' styled .ask blocks and
orphaning their headings, live, unreported.
data-booth-mark is canonical; data-booth-ask stays a kept alias because two
live reports use it. The comment placeholders are dropped — no users.
Declared cost: the verbatim path now needs JavaScript. The never-invisible
guarantee holds through the index badge and /b/<name>/marks, both of which
render server-side.
Deleted: booth/inline.py entire, wrap_verbatim_html and its six patterns,
_BACK_CHIP, asks_chip, inject_asks, FAVICON_LINK, the styles() macro.
Tests 410 -> 434. tests/test_embed_browser.py drives a real Chromium: the
placement algorithm and the form= binding of a scattered multi-question form
cannot be observed any other way, and that binding was measured rather than
assumed (N=3 per condition, with a form-first positive control and a
points-at-nothing negative control).
Contract: docs/contracts/u3_declared_embed_seam.contract.md, with the
in-session seam review and the cold contract panel both recorded. Two of the
panel's findings were code fixes: a vacuous INV-3 falsifier that a renamed
regex walked straight through, and a bare-substring seam detection that read
a report merely quoting the path as declaring it and silently served it with
no chrome.
All four pre-date U4 and sit in files it touched, which is why a diff-scoped
robustness lens saw them. They are separated from the unit's own commit so the
feature history stays readable; the release tags both.
* A booth name reached a JS string context. The confirm dialogs interpolated
the name into a string literal inside `onsubmit`. Jinja's autoescape is
HTML-attribute escaping, not JS-string escaping: the browser decodes the
entity back to a quote before the JS parser sees it, so a name crafted to
close the string executed on submit. Booth names are agent-authored — making
a folder under the data dir is the whole API — so this was a live path, not a
theoretical one. The name now travels as a data attribute to a delegated
handler, where escaping is escaping.
* An unreadable `links.md` returned 500 for the whole booth page. `is_file()`
then an unguarded `read_text()`. The board is one tile on that page, and a
page that will not load is worse than one missing a tile — the posture
`read_blurred`, `marks_for` and `read_manifest` already take.
* The index order had no tie-breaker, which violates the deterministic-order
invariant. Equal-mtime booths fell back to whatever `iterdir()` yielded, and
two booths landed by one `rsync` batch share an mtime exactly. Now
`(mtime, name)` reverse: newest first, then name. The operator refers to
cards positionally, so a sequence that moves between renders misfiles his
judgment rather than crashing.
* `/b/<n>/marks.json` reported damage as empty success. `booth marks` exits 3
on an unreadable file precisely so a caller can tell "not yet" from "broken";
the HTTP mirror — the only reader a remote session has — returned the same
empty list for both. It now carries `error` and `detail`. The status stays
200 deliberately: reads are lenient here, and a pinned status code is a
promise to remote clients this fix has no business breaking.
Each has a regression test. 410 tests.
The diff-scoped bug-hunt panel, four arms, artifact-only. Its strongest
finding is one I created two hours earlier while hardening the reader.
`stat` reports size 0 for a FIFO and 0 for a symlink to /dev/zero, so both
sail under the byte cap added for the RecursionError round — and then
`read_text` either blocks in read() with no EOF, so the except never runs,
or allocates until the kernel intervenes. `list_booths` reads every booth
on every GET / and /healthz, so ONE such file stalls the front page for the
whole service, with no error and no recovery short of a restart.
Reproduced before believing it (timeout returned 124). S_ISREG is checked
BEFORE the size in both modules now; verified against the live service with
two FIFOs planted, which answered 200 in 36ms.
The shape worth carrying: st_size answers a different question than "can
this be read", and a bound that trusts it inherits everything it does not
mean. A hardening fix opened a worse hole than the one it closed.
THE UPLOAD PATH WROTE ABOVE ITS OWN CLEANUP GUARD (4/4)
A failed manifest write orphaned a .uploaded half-booth with no files in
it — and because the temp name now carries a random suffix, nothing ever
overwrote the leak, and .booth.json.<hex>.tmp is not a .lock, so
_newest_mtime counted it and kept that empty booth past every sweep. The
uniqueness fix from the previous round is what made the leak permanent.
Both writes moved inside the guard; the temp is removed on every exit path.
DAMAGED BYTES ARE KEPT, NOT REPLACED (4/4, INV-6)
Marks made this explicit in v0.2.1 and this write path contradicted it: a
manifest that failed on ONE field lost the others with it, including a why
the re-announcer may never have kept anywhere. It diverges from marks in
HOW it honours the rule — marks refuse and answer 409 because the
operator's judgment is not restatable; a manifest quarantines and proceeds,
because refusing would fail `booth add` and lose the files it was copying.
ONE OPENNESS PREDICATE, AS U2 SAID (2/4)
`booth answer` spelled out `if m.answer is None` while `booth marks` asked
`open_marks`, so a partially-answered pick read as done to one verb and
open to the other — at the same instant, on the same booth. U2's INV-2 put
openness in one function precisely so they could not drift. The mirror case
is fixed too: a pick that hydrates broken is refused by the web route, so
`answer --wait` polled an hour on a form nothing could ever land.
ALSO
- now_stamp was whole-second while the importer had moved to microseconds,
and '-' sorts before '.', so a later mark came out ahead of an earlier
import inside the same second. One format; the previous round's ordering
fix had opened this one.
- `_broken` was the third of three directory-name fallbacks and the one
still handing a raw name into a card's sub-line.
- An identical re-announce rewrote the file and reset the TTL. `booth link`
does this on every post to the standing board.
- The importer's return went through the bare _hydrate, not _hydrate_safe.
- A marks document could be written larger than it can be read back, and
then read as no marks at all. Refused at the write instead.
- `choice` reached the answer builder raw while `notes` beside it did not.
AND ONE FINDING DELIBERATELY NOT FULLY CLOSED
The mtime-restore race is real. The clean fix — ignore a booth directory's
own mtime whenever the booth holds anything — also silently retires the
documented rule that releasing a kept board resets its clock, which the CLI
header, the README and a deliberately-written test all pin. That is a TTL
doctrine change, not a bug fix, and an existing test caught the attempt.
The concrete half is fixed (a failing os.utime escaped and 500'd the
route); the race is stated in the code where the next reader will meet it.
341 tests. Live service restarted, 24/24 booth pages verified.
`/heid-bug-hunt` on U2's diff, four arms, artifact-only. Eight findings were
real against live code; a ninth was already closed by v0.2.1 and is recorded as
declined. Full triage in persistent-memory.d/2026-09-22-bug-hunt-panel.md.
THE LOCK LIFECYCLE (4/4 convergent, and two defects in one place)
`_Locked.__exit__` unlinked `.marks.lock` on the no-op path so a booth that had
never been marked was left exactly as it was found. `flock` binds to an INODE:
unlinking it under a blocked waiter leaves that waiter holding an exclusive
lock on a deleted file while the next writer creates a fresh lock and takes it
immediately. Two processes then run the read-modify-write concurrently, the
later os.replace drops the earlier one's mark, and both obeyed the protocol.
The cleanup existed to protect the booth's TTL, and was failing at that too:
creating or removing a directory entry bumps the DIRECTORY's mtime, which is
what `_newest_mtime` seeds from. The guard's comment reasons about the lock
file's own mtime and misses that the directory moved underneath it.
One fix: never unlink the lock, exempt `.<name>.lock` dotfiles from
`_newest_mtime`, and restore the directory's mtime after creating one.
THE READ PATH'S BLAST RADIUS
`_clean_text` did `(text or "").replace(...)` and `marks_for` sorts on
`(created, id)`, so a stored `text` that was a dict or a `created` that was a
number raised out of the read path. `list_booths` reads every booth's marks on
every index load, so one hand-edited file returned 500 for `/` and `/healthz`
across all 25 booths. Guarded in two layers — a named type check and a
`_hydrate_safe` backstop that cannot raise — and an unreadable mark now renders
as ⚠ broken rather than as an empty note.
ALSO
- import_legacy_asks stamped `created` at whole-second resolution, so two
sidecars from the same second lost the ordering the importer had just
established and re-sorted alphabetically. Microseconds, per the stated
`(mtime, name)` rule.
- The five mark-write routes ran a blocking flock on the event loop; they now
dispatch through run_in_threadpool, asserted structurally like INV-1.
- `/answer` 500'd on a non-string `notes` form value where `/note` handled it.
- The inline-doc tile had a flag control and no note field.
- The marks panel was suppressed on any booth carrying a links.md.
- The viewer's arrow keys and Escape threw away a note being typed.
CLI
`booth marks` printed a traceback and exited 0 on a failed read, and `--wait`
emitted a whole JSON document per poll. `booth answer --wait` read a damaged
file as "not yet" and spun the full hour. Both now use real exit codes —
0 ok, 1 unanswered/timed-out, 2 no such pick, 3 unreadable — and `--wait`
prints once. `marks.read_error()` lets the CLI ask what the page must not: the
browser stays lenient, the machine consumer gets the truth.
`scripts/booth` had no tests; it has five now, run against the real script
under the system python3, which also makes them a live check on INV-1.
275 tests (253 before). Live service restarted, 25/25 booth pages verified 200.
Three defects and a missing test, all surfaced by the cross-frontier contract
panel dispatched before implementation and triaged after it (heid, four arms,
artifact-only, thread 01M33VSNFER4N1554G0Y0VC9C8). v0.2.0 was already tagged and
announced to fifteen handles when they landed, which is the argument for running
the gate at all.
DATA LOSS. `marks_for` is deliberately lenient — an unparseable `.marks.json`
reads as "no marks" so a review page still loads. The write path inherited that
leniency through the same reader, so one flag click appended a single entry to an
empty list and atomically replaced the file: every mark in the booth gone,
silently, from a click. Reproduced first, then fixed.
The fix is an asymmetry, not a retreat from leniency. Reads stay lenient; writes
go strict through `_read_raw_strict`, which distinguishes bytes-present-but-
unreadable from absent and valid-but-empty, and raises `MarksCorrupt`. The
damaged bytes are left on disk. Routes answer 409 rather than 500 — the service
is fine and the request was well-formed, the state on disk is not — and the body
says what to do, because the alternative the operator reaches for otherwise is
deleting the file, which is the thing being protected. The CLI says it in one
line instead of a traceback.
A PICK COULD NOT TARGET AN ITEM. `Mark.target` carried one, `marks_for_target`
retrieved by it, and the panel already rendered "on <item>" — but `declare_pick`
had no parameter for it, so no session could produce one. A question about one
artifact is the whole point of the 2026-09-09 inline-placement ruling; the door
was simply missing.
THE IMPORTER STRANDED AN ANSWER. A stem already present as a mark was skipped
wholesale. If a session had re-declared that stem through marks while the
operator's choice sat in the legacy sidecar, that choice was lost permanently —
reads are forbidden from looking at sidecars. The declaration is still skipped
(idempotence holds) but a legacy answer is now adopted when the existing mark is
an unanswered pick, and an answer made through marks is never overwritten.
INV-3 NAMED A SURFACE NOTHING TESTED. All four arms converged on it: the rule
protects gallery tile, zoom view and doc view; the falsifiable check covered one.
The doc view was implemented and untested, so shipping it unmarked would have
passed. Three tests now, one per surface.
The contract carries the full triage, including two findings accepted and NOT
closed: INV-2's and INV-5's checks comply in letter — openness can be re-derived
without spelling the grepped pattern, and importlib inside a function defeats the
AST walk. Both describe a future careless change, and the honest statement is
that these checks raise the cost of drifting rather than making it impossible.
Recorded rather than papered over.
Also pins the three prose ambiguities the panel found, normatively and once each:
what counts as open, the three distinct broken-declaration cases, and INV-6,
which had named a helper that does not exist and forbidden the calls that helper
must make.
253 tests.
The release that closes U2. Consumers have to adapt, which is what makes this a
minor rather than a patch: three things a scripted session can notice.
* `booth asks <name>` now emits JSON, not the old aligned human table.
Anything parsing those columns breaks. `booth marks <name>` is the name to
use; `asks` survives as a deprecated alias for the muscle memory.
* Polling `http://…/b/<n>/<stem>.answer.json` will 404 forever. There is no
per-question answer sidecar any more. `GET /b/<n>/marks.json` replaces it and
answers for the whole booth in one request — including an `open` list.
* `#ask-<stem>` page anchors are now `#mark-<id>`, and `/b/<n>/asks` 308s to
`/b/<n>/marks`.
What a session GAINS: the operator can now attach a note to any item or to the
booth, and flag individual items — both readable with `booth marks`. Selecting
winners out of a set used to be a chat message.
Nothing a session already wrote is lost. Legacy `*.ask.json` / `*.answer.json`
sidecars are imported by `booth marks-import <name>`, idempotently, and are
never deleted.
No lockfile step: this repo tracks none (uv.lock is gitignored, 790d5ba).
Operator: the form failed when a question was left blank. Refusing the whole
submission over one blank threw away the picks that were made, and the HTML
`required` on the radios blocked it in the browser before the server saw it.
- answered questions recorded; blank ones land in `unanswered`; `complete` says
whether the set is finished; a blank question carrying a note keeps the note
- `required` dropped from both templates so the browser cannot block a partial
- refused only when there is no pick anywhere AND no notes (a 400 — that would
flip an open ask to answered with no decision recorded); a choice outside the
option list is still an error
- new ◐ partial state with an n/N count; skipped questions render as skipped
- README + global CLAUDE.md tell reading sessions to check `complete`
- 154 tests; v0.1.15
Operator verdict on the separate /asks page: the question belongs with the
artifact it is about. A four-voice audition wants each voice's radio group
under that voice's audio, and one submit for the lot.
- booth/inline.py: data-booth-ask="stem" | "stem:key" | data-booth-ask-submit,
plus <!-- booth:ask ... --> comments; unknown stem left alone, not blanked
- _ask_inline.html: self-contained fragments (own scoped styles, no JS), per-question
groups bound to one form via the HTML5 form= attribute so a scattered
multi-question ask still POSTs once
- unplaced questions and a missing submit block are appended, so a partially
marked-up page can never produce an unsubmittable 400
- chip becomes a jump link to the first open ask; /asks page kept as a fallback
- 6 tests (one caught the partial-placement drop); v0.1.14
A custom index.html is returned verbatim, so booth.html's asks panel never
rendered there — a valid ask (emmie-anchor/anchor.ask.json) was listed by the
CLI and shown nowhere, with nothing to say so.
- panel extracted to _asks.html; new GET /b/<name>/asks standalone page
- verbatim pages get an amber '? N open asks' chip beside the back chip
- POST /answer honours back=asks so answering returns to that page
- single-question asks now keep an optional 'title' (was silently dropped)
- README + routes table; 8 regression tests; v0.1.12
- asks.py: single {prompt, options} and multi {title, questions:[{key, prompt, options, notes?}]} both normalise to questions[]; per-question notes; every question required on submit
- /answer reads choice.<key> / notes.<key> / notes for multi; single shape unchanged
- booth asks prints per-question picks; README + CLI header; install step symlinks the CLI to ~/.local/bin; v0.1.10; 135 tests
The standing link board grew from a flat oldest-first list with a per-row
× into a manageable board: newest links lead, favorites stay on top, and
several dead links can go in one pass.
- Ordering: order_for_display() renders pinned rows first, then newest-first
within each group (the board is an append log, so newest = most recently
posted — the row you usually came to grab).
- Pin/favorite: a per-row ★ toggles pinned state via POST /b/<name>/pin.
State lives in a .pins sidecar dotfile (one content id per line), NOT
inline in links.md — so links.md stays a pure atomic-append log (many
sessions post concurrently) and a row's content id never changes just
because it was pinned. remove_link_entry drops a removed row's pin;
orphaned pins are inert (renderer only stars a live id).
- Multi-select delete: checkboxes feed POST /b/<name>/unlink-many (repeated
'sel' content ids), with a select-all box and a live count. The per-row ×
stays for single removal.
- One <form> with formaction buttons, so checkboxes, ×, ★, and bulk delete
coexist without nested forms AND all work with JS off; JS only adds
select-all and the live count. Per-row × confirm reads desc/url from
data-* attrs, so an arbitrary posted description can't break into the JS.
- Every action is keyed by content id, never row position — same race-safety
the existing × has, extended to the bulk path.
- Fixed pre-existing undefined --fg/--bg CSS refs in the board styles.
Tests: +19 (pins round-trip, ordering, orphan-inert, remove-unpins, /pin
and /unlink-many endpoints, board render + order). Full suite 102 passing.
Deployed to nh3-dev booth.service; verified live (newest-first, pin
round-trip, bulk delete) against the real 31-row board with no data loss.
Zooming an image now shows ‹ / › arrows at the left/right edges that step
to the previous/next image in the booth (gallery sorted-rel order), wrapping
around, plus keyboard ←/→. Arrows are hidden when a booth has a single image.
booth_view_file computes neighbors via a new booth_image_names() helper and
passes prev_url/next_url to view.html. 3 new tests, suite 47 passing;
deployed + verified live on nh3-dev :8090.
Loose .md/.txt/.log files rendered as forced-download links in the gallery
and downloaded (or showed raw) when opened. Now they open in a readable
in-booth page via the existing /b/<name>/view route:
- .md -> rendered HTML (Python-Markdown: fenced code, tables, sane lists),
styled in an Australis .markdown-body with the viewer chrome;
- .txt/.log -> preformatted <pre> text view.
The gallery links docs to the viewer (📄) instead of a download; the view
page keeps a ⬇ (?dl=1) for saving. Files over 2 MB hand back raw. New
markdown dep (optional-import: degrades .md to text view if absent).
booth_image_view -> booth_view_file (now handles image + doc + raw-fallback).
9 new tests, suite 44 passing; deployed + verified live on nh3-dev :8090.
Verbatim-index.html booths were served raw (FileResponse) with no base
template, so they had no favicon and no way back to the booth index — the
gap the app-rendered gallery/zoom pages already covered via base.html.
booth_view now reads a small verbatim index.html and, via a pure
wrap_verbatim_html(), injects:
- a fixed-position 'all booths' chip (scoped class, max z-index, hidden
in print), pinned top-right (empty on left-aligned report layouts; a
top-left chip clips the page title) and appended at the END of the
document so it never reorders the page;
- the Booth favicon at the first head-ish seam, only if the page declares
no icon of its own.
Injection is doctype/charset-safe for the compact HTML real booths use
(<!doctype html><meta charset><title><style>…content, no explicit head/
body): nothing is ever placed ahead of a leading <!doctype> (which would
force quirks mode), and the ~250B favicon link keeps the charset <meta>
inside the first-1024-byte detection window. The raw file route
(/b/<name>/index.html) stays byte-for-byte, so assets and ?dl=1 downloads
are unchanged; files over 8 MB serve raw, unwrapped.
Verified live on nh3-dev :8090 across the real booth shapes (compact-HTML
crow-*/jackdaw-*/mimir-favicon, well-formed dcc-summarizer-ab, own-icon
edict-favicon). 10 new tests; suite 38 passing.
A verbatim index.html booth (e.g. edict-design-brief: a rendered brief + its
.md) had no download affordance — the page is served raw with no gallery/per-file
chrome. Adds:
- GET /b/<name>/?download=1 -> streams the whole booth as <name>.zip (attachment)
- GET /b/<name>/<file>?dl=1 -> forces Content-Disposition: attachment (html/md/
text otherwise render inline with no easy save)
- a download link on the index card (the accessible spot for verbatim booths)
and the gallery header
Tests for both; verified live against edict-design-brief on nh3-dev :8090.
Adds a "⧉ copy" button next to the pickup id that copies the id to the
clipboard (flips to "✓ copied"). The Booth serves over plain HTTP on a LAN IP,
where navigator.clipboard is undefined (secure-context only) — so the handler
falls back to a hidden-textarea execCommand('copy') that works over HTTP.
Verified on the LAN-IP (non-secure) path: isSecureContext=false, clipboard API
absent, button state flips, no errors. Reusable via any .copy-btn[data-copy].
Clicking a gallery image now opens a dedicated viewer instead of dumping you on
the raw file.
- GET /b/<name>/view?f=<img> — full-viewport viewer (registered before the file
catch-all so /view wins; non-image f 307-redirects to the raw file, traversal
and missing f 404).
- Fit (downscale-only) / 1:1 (natural pixels, scroll-to-pan) toggle that only
appears when the image is larger than the viewport — when it already fits,
Fit ≡ 1:1 so the toggle is hidden. Re-evaluates on resize.
- Download button + ✕/Esc back to the gallery. Australis-themed, progressive
JS (degrades to fit-only, no-JS still shows the image + download + back).
- 5 new tests (34 total, all green); verified Fit/1:1/hidden-toggle states in a
real browser.
Add a reverse direction to the Booth: the operator (or any client via `curl -F`)
can upload files through the browser and pick them up by a human-readable id.
- POST /upload — streams files to a new booth named with a human-readable id
(e.g. 4-wombat / star-84), 303-redirects to /b/<id>/ (id in the Location
header so curl clients can read it). Uploads reuse the whole booth machinery
(render, per-file download links, 24h TTL sweep, delete).
- Human-readable ids: word+number in either order, collision-checked, from a
curated 140-word friendly list; secrets-based selection.
- Safety: filenames reduced to a safe basename (no traversal), streaming size
cap (BOOTH_MAX_UPLOAD_MB, default 1024) + file-count cap (BOOTH_MAX_FILES,
default 50), partial-write cleanup on any failure.
- UI: Australis-themed upload/drop panel (drag-drop, progressive-enhancement JS,
degrades to a native file input), a "⬆ pickup" badge on upload booths, a
pickup banner, and a ⬇ download link on every gallery item.
- python-multipart dependency; homepage tile description updated; 9 new tests
(24 total, all green).
A standing user-level web server (nh3-dev :8090) that renders drop-folders
under ~/booth-data as ephemeral media "booths" so Claude Code sessions can
surface A/B renders and smoke results to the operator, then let them self-wipe.
- Scan-and-serve model, no database, no upload API — a booth is just a folder.
A folder's own index.html is served verbatim; otherwise an auto-gallery of
images / webm+mp4 video / audio is rendered, with <file>.txt caption sidecars
folded in (labels A/B pairs).
- 24h TTL from newest mtime in the tree; background sweeper wipes stale booths.
- Path-traversal + symlink-escape guarded; delete via UI button or DELETE API.
- FastAPI + Jinja2, runs from the checkout under systemctl --user (booth.service),
alongside the other nh3-dev fleet sidecars. 15 tests, all green.
- Homepage tile added (Apps -> The Booth, siteMonitor /healthz).
- Harden the homepage rsync doc: exclude *.bak* and logs/ so --delete can't
wipe the host's dated services.yaml backups (footgun found deploying this).