Sweep [(nox-csv :with-test)] into 21 packages that load CSV-format
interop test vectors via [Csv.decode_file] but didn't declare
[nox-csv] as a test-scope opam dep. Most are CCSDS protocol
implementations whose [test/interop/.../test.ml] decodes vendor-
supplied vectors stored as CSV alongside the test fixtures.

ocaml-aos, ocaml-ax25, ocaml-bundle, ocaml-clcw, ocaml-cose,
ocaml-fsr, ocaml-hkdf, ocaml-merge3, ocaml-protobuf, ocaml-pus,
ocaml-reed-solomon, ocaml-rice, ocaml-s3, ocaml-space-packet,
ocaml-tc, ocaml-tcf, ocaml-tcpcl, ocaml-tm, ocaml-turbo, ocaml-uslp,
ocaml-viterbi.

Each verified by [dune build] + [dune runtest].

Each README's 'opam install <pkg>' instructions now match the post-rename
opam package names. Auto-generated by 'monopam lint --fix' after the
nox-* prefix landed on the underlying packages.

Renames 35 packages to make blacksun forks distinguishable from their
opam-repository upstreams. Module names (Git.x, Tls.x, ...) stay bare;
opam package names and dune (public_name) findlib references move to
nox-X. After this commit, zero local package names overlap with
opam-repository.

Renamed:
- nox-git, nox-irmin
- nox-crypto, nox-crypto-pk, nox-crypto-rng, nox-crypto-ec
- nox-tls, nox-tls-eio, nox-tar, nox-tar-eio, nox-tty, nox-tty-eio
- nox-arp, nox-ca-certs, nox-cbor, nox-cookie, nox-crc, nox-csv
- nox-gpt, nox-hkdf, nox-http, nox-jwt, nox-kdf, nox-loc
- nox-memtrace, nox-pds, nox-sexp, nox-slack, nox-toml
- nox-websocket, nox-x509, nox-xdge, nox-yaml

Also drops orphan tar-mirage and tar-unix opam templates that had no
matching package stanza.

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.

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.

Drops the redundant "t" suffix. Library name, opam package, module
(Csvt -> Csv), and directory all rename in lockstep. Every downstream
reference in interop tests, libraries, and docs updated.

- Move Alcotest.run from test_hkdf.ml into a new test.ml runner; expose
test_hkdf.ml's cases via [Test_hkdf.suite] (E600).
- Rename the suite from "HKDF-SHA256 vectors" to all-lowercase to match
merlint's suite-name convention.
- Add trailing period to the extract / expand return-value docs (E410).

Same refactor pattern as xmlt (d786b041, 067b745c):

- Dropped the custom error ADT (Missing_header, Missing_column,
Bad_value, Truncated_row, Encode_error, Invalid_utf8), error_to_string,
pp_error.
- module Error = Textloc.Error (re-exports shared infrastructure).
- module Sort = Row | Field | Header with to_string, pp, kinded,
or_kind.
- Internal helpers raise Textloc.Error.msgf/msg; try/with at boundaries.
- decode/decode_string/decode_channel/decode_file/fold_channel/fold_file
now return (_, string) result.
- Added primed variants returning (_, Error.t) result.
- Path threading: push_array for row index, push_object for column
name -- errors carry structural context.
- Added ?max_rows / ?max_cols limits on decode.
- Kept Invalid_utf8_encode of int exception.

Tests tightened to STRUCTURAL assertions (exact frames list, exact
message) instead of substring checks.

Same tightening retrofitted to xmlt's context tests -- 12 tests
now assert exact Textloc.Error.t shape (full frame list including
outer-first ordering, exact message) rather than 'contains'.

Downstream fixes: ocaml-cdm collapses its typed error ADT to
[Parse_error of string]; 38 interop test files updated from
[Alcotest.failf "%a" Csvt.pp_error e] to ["%s" e].

csvt: 60 tests pass. xmlt: 177 tests pass.

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.

112 files across the monorepo. Printf.sprintf → Fmt.str,
Printf.printf → Fmt.pr for consistent formatting library usage.

- ocaml-sdls: Add Algorithm module for SA algorithm negotiation, re-export
- ocaml-sle: Add ROCF (Return Operational Control Field) service module
- ocaml-tm-sync: Add convolutional coding (rate 1/2 K=7), LDPC, turbo codes
with encode/decode and comprehensive unit tests
- ocaml-sgp4: Update GMAT interop station contacts test
- ocaml-hkdf: Regenerate opam with alcotest dep
- ocaml-flexacm: New package for flexible adaptive coding and modulation

ocaml-hkdf: Add 9 tests from RFC 5869 Appendix A (SHA-256 vectors A.1-A.3).
Each test case verifies extract (PRK), expand (OKM), and derive (combined).
This library previously had zero tests.

ocaml-sdls: Add NIST SP 800-38B test vectors for AES-CMAC (AES-128 and
AES-256, empty/16B/40B/64B messages) and RFC 4231 test vectors for HMAC
(SHA-256/384/512, test cases 1-4). Also adds verification and error tests.