cog-ha-matter (ADR-116 P8): CI release workflow + fix inherited filename bug

New `.github/workflows/cog-ha-matter-release.yml`:

  * Triggers on `cog-ha-matter-v*` tag-push + manual dispatch
  * Three jobs: build-x86_64, build-arm, publish-gcs
  * x86_64: native ubuntu-latest cargo build
  * arm: aarch64-unknown-linux-gnu via apt-installed gcc-aarch64-linux-gnu
    linker (no `cross` dep needed — keeps workflow self-contained)
  * Each build job runs make build-{arch} + make sign-{arch} +
    gated Ed25519 sign step (skipped when COGNITUM_OWNER_SIGNING_KEY
    secret is unset — workflow still produces unsigned artifacts so
    we get build coverage now and signing later without re-merging)
  * publish-gcs job gated on `vars.HAS_GCP_CREDENTIALS == 'true'`
    so the workflow is safe to merge before credentials land —
    no-op until the org admin sets the variable
  * Uploads binary + sha256 + (optional) sig to
    `gs://cognitum-apps/cogs/{arch}/cog-ha-matter-{arch}`
  * Prints the app-registry.json snippet for the cognitum-one PR
    (so the publish step's output is the exact JSON the user pastes)

Fixed a bug inherited from cog-pose-estimation's Makefile: the
precedent produces `dist/cog-cog-pose-estimation-arm` (double
`cog-` prefix because CRATE name already starts with `cog-`) but
the manifest URL has single prefix `cog-pose-estimation-arm`. The
upload path doesn't match the binary_url — a latent bug in the
pose cog's pipeline.

My copy now produces `dist/cog-ha-matter-arm` matching the
manifest URL `cog-ha-matter-{{ARCH}}`. Changed: Makefile (build /
sign / upload / verify / clean targets), workflow (artifact names
+ gsutil paths), README (local dry-run instructions). The
cog-pose-estimation precedent is unchanged — separate fix if/when
the user wants to align it.

What this iter does NOT do (P8 remaining):
  * provision GCP_CREDENTIALS / COGNITUM_OWNER_SIGNING_KEY secrets
    (user action — needs org admin access)
  * actually run the workflow (needs a `cog-ha-matter-v0.1.0` tag
    push, or workflow_dispatch from the Actions tab)
  * append to app-registry.json in cognitum-one (separate repo PR)

Next iter: tag a v0.0.1-dev (so the workflow runs once + we see
any build-time errors on real CI runners) OR scaffold the
app-registry.json patch payload as a check-in doc.

Co-Authored-By: claude-flow <ruv@ruv.net>

v2/crates/cog-ha-matter/cog/Makefile

@@ -19,12 +19,12 @@ build: build-arm build-x86_64
 build-arm:
 	mkdir -p dist
 	cargo build -p $(CRATE) --release --target aarch64-unknown-linux-gnu
-	cp ../../target/aarch64-unknown-linux-gnu/release/$(CRATE) ./dist/cog-$(CRATE)-arm
+	cp ../../target/aarch64-unknown-linux-gnu/release/$(CRATE) ./dist/$(CRATE)-arm
 
 build-x86_64:
 	mkdir -p dist
 	cargo build -p $(CRATE) --release --target x86_64-unknown-linux-gnu
-	cp ../../target/x86_64-unknown-linux-gnu/release/$(CRATE) ./dist/cog-$(CRATE)-x86_64
+	cp ../../target/x86_64-unknown-linux-gnu/release/$(CRATE) ./dist/$(CRATE)-x86_64
 
 # --- Sign ---
 
@@ -32,15 +32,15 @@ build-x86_64:
 
 sign: sign-arm sign-x86_64
 
-sign-arm: dist/cog-$(CRATE)-arm
-	sha256sum dist/cog-$(CRATE)-arm | cut -d' ' -f1 > dist/cog-$(CRATE)-arm.sha256
+sign-arm: dist/$(CRATE)-arm
+	sha256sum dist/$(CRATE)-arm | cut -d' ' -f1 > dist/$(CRATE)-arm.sha256
 	# Signature: gcloud secrets versions access latest --secret=COGNITUM_OWNER_SIGNING_KEY \
-	#   | openssl pkeyutl -sign -inkey /dev/stdin -rawin -in dist/cog-$(CRATE)-arm.sha256 \
-	#   | base64 -w0 > dist/cog-$(CRATE)-arm.sig
+	#   | openssl pkeyutl -sign -inkey /dev/stdin -rawin -in dist/$(CRATE)-arm.sha256 \
+	#   | base64 -w0 > dist/$(CRATE)-arm.sig
 	@echo "TODO: wire Ed25519 sign step once COGNITUM_OWNER_SIGNING_KEY is provisioned to CI."
 
-sign-x86_64: dist/cog-$(CRATE)-x86_64
-	sha256sum dist/cog-$(CRATE)-x86_64 | cut -d' ' -f1 > dist/cog-$(CRATE)-x86_64.sha256
+sign-x86_64: dist/$(CRATE)-x86_64
+	sha256sum dist/$(CRATE)-x86_64 | cut -d' ' -f1 > dist/$(CRATE)-x86_64.sha256
 	@echo "TODO: wire Ed25519 sign step once COGNITUM_OWNER_SIGNING_KEY is provisioned to CI."
 
 # --- Upload to GCS ---
@@ -49,11 +49,11 @@ sign-x86_64: dist/cog-$(CRATE)-x86_64
 
 upload: upload-arm upload-x86_64
 
-upload-arm: dist/cog-$(CRATE)-arm
-	gsutil cp dist/cog-$(CRATE)-arm $(GCS_BUCKET)/arm/cog-$(CRATE)-arm
+upload-arm: dist/$(CRATE)-arm
+	gsutil cp dist/$(CRATE)-arm $(GCS_BUCKET)/arm/$(CRATE)-arm
 
-upload-x86_64: dist/cog-$(CRATE)-x86_64
-	gsutil cp dist/cog-$(CRATE)-x86_64 $(GCS_BUCKET)/x86_64/cog-$(CRATE)-x86_64
+upload-x86_64: dist/$(CRATE)-x86_64
+	gsutil cp dist/$(CRATE)-x86_64 $(GCS_BUCKET)/x86_64/$(CRATE)-x86_64
 
 # --- Manifest ---
 
@@ -67,11 +67,11 @@ manifest:
 .PHONY: release verify clean
 
 release: build sign upload manifest
-	@echo "Release pipeline complete for cog-$(CRATE) v$(VERSION)"
+	@echo "Release pipeline complete for $(CRATE) v$(VERSION)"
 
 verify:
 	@for arch in $(ARCHES); do \
-		f=dist/cog-$(CRATE)-$$arch; \
+		f=dist/$(CRATE)-$$arch; \
 		if [ ! -f $$f ]; then echo "  MISSING $$f"; continue; fi; \
 		actual=$$(sha256sum $$f | cut -d' ' -f1); \
 		expected=$$(cat $$f.sha256 2>/dev/null); \
@@ -80,4 +80,4 @@ verify:
 	done
 
 clean:
-	rm -rf dist/cog-$(CRATE)-*
+	rm -rf dist/$(CRATE)-*

v2/crates/cog-ha-matter/cog/README.md

@@ -62,8 +62,8 @@ that appends:
   "id": "ha-matter",
   "version": "<the version make manifest printed>",
   "binary_url": "https://storage.googleapis.com/cognitum-apps/cogs/{arch}/cog-ha-matter-{arch}",
-  "binary_sha256": "<from dist/cog-cog-ha-matter-{arch}.sha256>",
-  "binary_signature": "<from dist/cog-cog-ha-matter-{arch}.sig — empty until signing is wired>",
+  "binary_sha256": "<from dist/cog-ha-matter-{arch}.sha256>",
+  "binary_signature": "<from dist/cog-ha-matter-{arch}.sig — empty until signing is wired>",
   "description": "Home Assistant + Matter Cognitum Seed cog (mDNS + witness chain)",
   "min_seed_version": "0.6.0",
   "installable_on": ["arm", "x86_64"]