Run one test and audit the repo without retyping either (V-653)

Two commands replace work that 66 sessions of transcripts show being
redone by hand.

`make t` replaces the CGO preamble, pasted 391 times across past
sessions and documented in CLAUDE.md as the way to do it. It also sets
MAVEN_ONNX_LIB, which that recipe did not: the four TestONNX*
measurements self-skip without it and the run still prints "ok", so
every targeted eval done the old way reported the hash ratchet while
reading as a real embedder score. -race keeps it honest against `make
test`, -count=1 keeps a stale cache from passing as a result.

`make audit` replaces the inventory sweep. The four longest sessions
spent 93 greps rebuilding it before their first edit. Runs in 0.75s.

Its stub search is narrower than the sweeps were, on purpose. "not
wired" is this repo's word for a nil dependency and matched ~30
comments describing working code; "placeholder" names real identifiers
and matched 16 more; internal/ipc/unimplemented.go is the deliberate
Unimplemented*Server pattern, not 60 gaps. A gap report that reports
the architecture back at you is one nobody reads twice.

Makefile

@@ -16,7 +16,7 @@ PIPER_BIN     := $(shell pwd)/deps/piper/piper
 PIPER_MODEL   := $(shell pwd)/models/tts/ru_RU-irina-medium.onnx
 PIPER_ESPEAK  := $(shell pwd)/deps/piper/espeak-ng-data
 
-.PHONY: simulate stt-fixtures test-stt-golden all build build-stt build-tts build-daemon build-client build-waked build-web build-poll build-caldav clean test fmt-check vet run-stt run-tts run-web download-embedder deps-go deps-sentinel tidy eval-router eval-reach eval-recall eval-phrasing eval-models build-gpud
+.PHONY: t audit simulate stt-fixtures test-stt-golden all build build-stt build-tts build-daemon build-client build-waked build-web build-poll build-caldav clean test fmt-check vet run-stt run-tts run-web download-embedder deps-go deps-sentinel tidy eval-router eval-reach eval-recall eval-phrasing eval-models build-gpud
 
 all: build
 
@@ -128,6 +128,35 @@ test: fmt-check vet
 	CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" LD_LIBRARY_PATH="$(shell pwd)/deps/lib" \
 		$(GO) test -race -coverprofile=coverage.out ./internal/... ./cmd/...
 
+# t — run ONE package or ONE test with the toolchain env already wired. This is
+# the iteration target; `test` is the gate. Reach for it instead of pasting the
+# CGO_CFLAGS/CGO_LDFLAGS/LD_LIBRARY_PATH preamble by hand, which is how it was
+# done ~390 times across past sessions and is where the shell-quoting failures
+# came from -- the interactive shell here is zsh, and an unquoted `-run Test*`
+# or `--include=*.go` dies on "no matches found" before go ever starts.
+#
+#   make t                                     # whole tree (same scope as `test`)
+#   make t PKG=./internal/router/
+#   make t PKG=./cmd/mavend/ RUN=TestSimulator
+#   make t PKG=./internal/router/eval/ RUN='TestONNX' V=1
+#   make t PKG=./internal/store/ RACE=0        # drop -race when iterating hot
+#
+# -race is on by default so a green `make t` cannot turn red under `make test`.
+# -count=1 because a cached PASS from before your edit is worse than no answer.
+# MAVEN_ONNX_LIB is set for the same reason: the four TestONNX* measurements
+# self-skip when it is unset, so a targeted eval run would otherwise report the
+# deterministic hash ratchet and look like it scored the real embedder.
+PKG  ?= ./internal/... ./cmd/...
+RUN  ?=
+V    ?=
+RACE ?= 1
+
+t:
+	CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" LD_LIBRARY_PATH="$(shell pwd)/deps/lib" \
+	MAVEN_ONNX_LIB="$(MAVEN_ONNX_LIB)" \
+		$(GO) test $(if $(V),-v,) $(if $(filter-out 0,$(RACE)),-race,) -count=1 \
+		$(if $(RUN),-run '$(RUN)',) $(PKG)
+
 # eval-router — score the held-out RU routing fixture (internal/router/eval).
 # Verbose so the report tables land in the terminal. MAVEN_ONNX_LIB points the
 # prod-representative baseline at the vendored runtime; override it or set it
@@ -189,6 +218,16 @@ eval-models:
 # scores the fixtures against ggml-small and self-skips when the model is
 # absent, and TestGoldenFixturesAreCanonical, which checks the committed audio
 # and the manifest with no model at all.
+# audit — the repo inventory: LOC per package, open TODOs, real stubs, living-doc
+# staleness, test shape, packages with no test. Read-only, prints, writes nothing.
+# Run it instead of rebuilding the same greps by hand; past sessions spent 93 of
+# them on this before their first edit. SECTION=loc|todo|stubs|docs|tests|gaps
+# narrows it.
+SECTION ?= all
+
+audit:
+	@SECTION="$(SECTION)" ./scripts/audit.sh
+
 stt-fixtures:
 	./scripts/gen-stt-fixtures.sh