Sweep bottler, kdf, cose, meross, publicsuffix, punycode, pus, sbom,
stix, and rego: remove opam dependencies that are not referenced from
any dune stanza or source file. Each removal verified with a clean
build and test run.

The blocks chained top-level [match ... with] expressions, which
doesn't parse, and used [Format.printf] commentary alongside trailing
[(* Output: ... *)] comments to assert behaviour. Wrap each call in
[let () = match ... with], replace the comments with [assert]s, and
drop [Format.printf] for [Fmt.failwith] / silent OK.

The example was malformed OCaml — bare expressions strung together with
'(* Returns ... *)' annotations between them, no let-bindings or asserts.
Convert each call into a 'let () = assert (... = Ok ...)' so MDX
type-checks the calls and the build catches drift in the return type.

Also drop 'domain-name' from lib/dune's (libraries ...) — Dead_lib
shows the publicsuffix module no longer references it; punycode.idna
re-exports the only use site.

Several packages had alcobar/alcotest/mdx/bytesrw/etc. used in
test/ or fuzz/ but undeclared in dune-project, leaving the opam
metadata silently incomplete. Sync the dune-project depends and
regenerate the opam files.

The READMEs all share the standard install/overlay snippet, but the
sh blocks lacked the "<!-- $MDX skip -->" directive. `dune test`
would shell out to `opam install` against the live switch, which
either prompts interactively or fails with a package conflict —
either way diffing as a test failure.

Bulk-add skip directives in front of every install/overlay block.
Also collapse the doubled "non-deterministic + skip" stack on three
READMEs (memtrace, ocaml-dpop, ocaml-pid1, ocaml-yaml, merlint) where
`skip` already implies the runtime is bypassed.

Pure formatting changes from `dune fmt`: doc comment placement moves
from above the binding to below it for `type`s, multi-line `match`
expressions collapse onto one line where they fit, and infix operator
applications pick up spaces (`Soup.($?)` -> `Soup.( $? )`). No
semantic changes.

Follow up to the module rename: update the remaining callers that
still referenced [Err] (library [claude.ml{,i}], [client.ml], the test
driver [test.ml]), and fix one stray [^ e] string concatenation in
hermest's CLI that needed [Json.Error.to_string e] now that
[Json.of_string] yields a structured error.

Warning 69 (unused-field, mutable-never-assigned). Four independent
record fields were flagged as mutable but the code only mutates their
referents in place, never rebinds the record slot itself:

- ocaml-wal/lib/wal.ml: [t.file] (the Eio file resource; methods call
Eio.File.pwrite_all etc., the slot is set once at open time).
- ocaml-block/lib/block.ml: [Memory.state.data] (the backing bytes,
written via Bytes.blit_string; [Bytes.t] is already mutable).
- ocaml-sse/lib/sse.ml: [Parser.t.data_buf] (a Buffer.t, written via
Buffer.add_*; the slot never changes).
- ocaml-zephyr/lib/zephyr.ml: drop [mode : Read | Write] entirely —
set at open-time, read nowhere. The open_read / open_write
constructors already distinguish the two call shapes, so mode
tracking was redundant.

Structural move per the new E521 rule and cram skill:

- Each package's cram tests now live under test/cram/, with shared
shell setup at test/cram/helpers.sh (auto-sourced by dune 3.21's
setup_scripts) and driver exes in test/cram/helpers/.
- Packages migrated: ocaml-git, ocaml-tty, ocaml-vlog, xdge,
ocaml-precommit, ocaml-publicsuffix, ocaml-requests, monopam, irmin.
- ocaml-tty's cram was actively broken; fixed and the driver rewritten
to use Tty.Progress.render.
- irmin: adds scrub_hash/scrub_time helper scripts for normalising
non-deterministic output (dune cram has no glob/regex matching).

Tests cover the pure surface: empty, add, remove (single + keeps
others), pp, and load on a missing file. The Skills.Config helpers had
no coverage at all before this.

Generate .opam.template files with x-quality-* fields based on
detected package features:
- x-quality-build: has lib/ with .ml files
- x-quality-test: has test/ with .ml files
- x-quality-fuzz: has fuzz/ with .ml files
- x-quality-interop: has test/interop/ directory
- x-quality-cram: has test/*.t/ directories

These fields are picked up by dune's opam generation and will be
checked by merlint E910 for consistency.

Also: add fmt dep to ocaml-sse/lib/dune (Fmt.pf used without dep).

monopam quality — scans packages for quality features, caches by
git commit hash. 166 packages: build=163, test=162, fuzz=94,
interop=39, doc=42.

Standard vocabulary based on crates.io categories, erratique/opam
conventions, and monorepo domain coverage:

Org: org:blacksun
Domain: aerospace, codec, crypto, network, storage, git, merkle
Purpose: cli, test, bench, format, log, system
Protocol: ccsds, uslp, cop1, sdls, sle, atproto, tls, http, json, binary
Cross-cutting: eio, simulation, math, compression

Tags placed in dune-project (package ...) stanzas via (tags ...).
Propagated to .opam files by dune's opam generation.

- Update .ocamlformat to 0.29.0 across all 591 files
- csvt: reuse single Buffer.t for field reads (no alloc per field)
- sexpt: Obj members decoded from stream into Dict, typed Variant GADT
- Reformat all source files for 0.29.0

Adds 108 missing dependency declarations across 52 packages.
Most common missing dep was fmt (38 packages), followed by wire,
eio, and bytesrw. Also improves lint output with tty tables and
better subtree filtering display.

Replace Printf.sprintf/printf and Format.asprintf/fprintf with
Fmt.str/pr/pf across publicsuffix, punycode, rate-limit, requests,
and openamp packages. Add fmt dependency to gen_corpus executables.

Replace Printf.sprintf with Fmt.str, Format.asprintf with Fmt.str,
Format.fprintf with Fmt.pf, and Format.formatter_of_buffer patterns
with Fmt.str "%a" across all test files.

Replace Alcotest.fail (Fmt.str ...) with Alcotest.failf in test_huri.
Apply dune fmt formatting across precommit, requests, qemu, and
publicsuffix packages.

Auto-formatting and structural improvements from dune fmt across
precommit, publicsuffix, punycode, and requests packages.

Strip get_/make_/find_/create_ from 138 function definitions and all
call sites across ocaml-pds, ocaml-pid1, ocaml-precommit,
ocaml-publicsuffix, ocaml-qemu, ocaml-requests, ocaml-retry, and
ocaml-rpmsg. Use Module.v for constructors per the E331 convention.

Add missing periods to doc comments, fix [name] format mismatches,
and add pp pretty-printer to Publicsuffix.t.

- E505: add h2_conpool_handler.mli with abstract h2_state type
- E510: add log source to bin/ocurl.ml
- E605: recreate test_one.ml as proper unit tests for One module
- E610: add lib/h2/h2_types.ml to satisfy test_h2_types.ml
- E615: include Test_one and Test_response suites in test.ml

Flatten test_retry from 5 groups into a single ("retry", [...]) pair.
Rename identifiers exceeding 4 underscores: i_frame → iframe,
multiple_targets_partial → multitarget_partial, etc.

- requests: convert test_signature, test_websocket, test_rfc9421_vectors
to modules exporting suite; add test.ml runner; delete standalone .mli
for test_simple/test_simple_head
- punycode: consolidate 2 test stanzas into single test.ml runner;
add .mli files; fix ace_prefix doc (E410)
- publicsuffix: rename psl_test.ml → test_psl.ml (E618)
- rpmsg: add missing test_rpmsg.mli and test_wire.mli (E600)

- ocaml-pds: test_blob_store (13 tests), test_sqlite_blockstore (14 tests)
- ocaml-publicsuffix: test_publicsuffix (21 tests, Mozilla PSL vectors),
test_publicsuffix_cmd (11 tests)
- ocaml-punycode: test_punycode_idna (51 tests, RFC 5891 IDNA vectors)
- ocaml-rpmsg: test_rpmsg (9 tests, Linux kernel rpmsg constants)

Migrate Printf.sprintf to Fmt.str, Format.fprintf to Fmt.pf, and
Format.pp_print_string to Fmt.string across bundle, gpt, hap, homebrew,
jsonwt, matter, mbr, meross, paseto, precommit, publicsuffix, qemu,
retry, sdnv, slack, sle, space-packet, spake2, sqlite, squashfs, tar,
tc, tcf, tcpcl, tm, tomlt, tty, uslp, vlog, wal, wire, yamlrw, yamlt,
osrelease, space, xdge, and crypto test runner.

- License -> Licence
- color -> colour (in prose, not API/code)
- behavior -> behaviour
- analyze -> analyse
- organized -> organised
- Remove marketing buzzwords (leveraging)
- Remove emojis from prose

Update homepage/bug_reports in dune-project files to use the actual
upstream URLs (anil.recoil.org, github.com/mirage) instead of the
fork URLs. sources.toml overrides these when publishing to the fork.