Rewrite remembering in Go

The shell pipeline (sed | sort | tee | awk | sort | cut | "$@"
plus the cut | uniq | awk profile rewrite) becomes a single static
binary with the same observable behaviour, pinned by the original
ranking.sh, signals.sh and cli-opts.sh suites, now aimed at
remembering.bin:

- the profile keeps the exact on-disk format, COUNT profile TEXT,
  byte-sorted with new picks appended at 1 and offered-but-never-
  picked entries persisted at 0;
- the menu stays count-descending with byte-order ties, stdin
  alone defines what is offered, and duplicate profile lines sum
  for ranking but collapse to the highest count on rewrite, as
  sort | uniq -f1 did;
- the wrapped command's exit status is forwarded as-is (128+sig
  for signal deaths), its stderr passes through, and an empty pick
  learns nothing;
- the profile rewrite stays atomic via .tmp plus rename.

Per the house CLI conventions, -h/-V/--help/--version are gone
(the manpage is the documentation; bad options print the usage on
stderr and exit 2), and getopts-style attached option arguments
(-pNAME) are not accepted any more --- no script in the wild used
them.

The project layout follows rot: raw go tool compile/link Makefile,
mkdeps.sh-generated deps.mk, white-box unit suite, fuzz target
over the profile parse/serialize roundtrip, functional pick
roundtrip, a 1M-line ranking benchmark, and a single English
asciidoc manpage absorbing the old .5 page; the po4a/aux release
machinery goes away.

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

1 files changed, 6 insertions, 4 deletions

diff --git a/tests/signals.sh b/tests/signals.sh
index 36491cf..e1cb063 100755
--- a/tests/signals.sh
+++ b/tests/signals.sh
@@ -3,6 +3,8 @@ set -u
 
 . tests/lib.sh
 
+REMEMBERING="$PWD/remembering.bin"
+
 XDG_DATA_HOME="$PWD/tests/test-profiles/signals-$(uuid)"
 export XDG_DATA_HOME
 
@@ -10,15 +12,15 @@ test_status_is_zero_when_command_is_successful() {
 	testing 'status is 0 when command is successful'
 	N="$LINENO"
 
-	printf 'a\n' | ./src/remembering -pp1 -- head -n1 1>/dev/null 2>/dev/null
+	printf 'a\n' | "$REMEMBERING" -p p1 -- head -n1 1>/dev/null 2>/dev/null
 	STATUS=$?
 	assert_status 0
 
-	printf '' | ./src/remembering -pp2 -- true 1>/dev/null 2>/dev/null
+	printf '' | "$REMEMBERING" -p p2 -- true 1>/dev/null 2>/dev/null
 	STATUS=$?
 	assert_status 0
 
-	seq 9 | ./src/remembering -pp3 -- grep 7 1>/dev/null 2>/dev/null
+	seq 9 | "$REMEMBERING" -p p3 -- grep 7 1>/dev/null 2>/dev/null
 	STATUS=$?
 	assert_status 0
 
@@ -29,7 +31,7 @@ test_status_is_forwarded_from_command() {
 	testing 'status is forwarded from command'
 	N="$LINENO"
 	for status in $(seq 1 125); do
-		printf '' | ./src/remembering -pp4 -- sh -c "exit $status" 1>/dev/null 2>/dev/null
+		printf '' | "$REMEMBERING" -p p4 -- sh -c "exit $status" 1>/dev/null 2>/dev/null
 		STATUS=$?
 		assert_status "$status"
 	done