Remove dist .envrc, update env var hints to be generic

dist/Makefile

@@ -65,7 +65,7 @@ help:
 	@echo "  GITEA_TOKEN     - Gitea API token (required for release)"
 	@echo "  APTLY_URL       - Aptly instance URL (required for APT deployment)"
 	@echo "  APTLY_PASS      - Aptly API password"
-	@echo "                   Run: source .envrc"
+	@echo "                   These must be set in your environment"
 
 clean:
 	@echo "Cleaning build artifacts..."
@@ -119,7 +119,7 @@ deploy-repo: $(ARM64_DEB) $(AMD64_DEB)
 	@echo "Deploying APT repository..."
 	@if [ -z "$(APTLY_URL)" ] || [ -z "$(APTLY_PASS)" ]; then \
 		echo "Error: APTLY_URL and APTLY_PASS must be set"; \
-		echo "   Run: source .envrc"; \
+		echo "   These must be set in your environment"; \
 		exit 1; \
 	fi
 	@./scripts/deploy-apt-repository.sh
@@ -129,7 +129,7 @@ release: $(ARM64_DEB) $(AMD64_DEB)
 	@if [ -z "$(GITEA_TOKEN)" ]; then \
 		echo "Error: GITEA_TOKEN environment variable not set"; \
 		echo "   Get a token from $(GITEA_URL)/user/settings/applications"; \
-		echo "   Or run: source .envrc"; \
+		echo "   These must be set in your environment"; \
 		exit 1; \
 	fi
 	@if git tag | grep -q "^$(RELEASE_TAG)$$"; then \
@@ -150,7 +150,7 @@ release-edge: $(ARM64_DEB) $(AMD64_DEB)
 	@echo "Creating edge release ($(EDGE_VERSION))..."
 	@if [ -z "$(GITEA_TOKEN)" ]; then \
 		echo "Error: GITEA_TOKEN environment variable not set"; \
-		echo "   Or run: source .envrc"; \
+		echo "   These must be set in your environment"; \
 		exit 1; \
 	fi
 	@echo "Force-pushing edge tag to HEAD..."

dist/README.md

@@ -71,6 +71,6 @@ dist/bin/        Standalone binaries
 dist/packages/   .deb packages
 ```
 
-Environment variables (see `.envrc`):
+Environment variables (must be set in your environment):
 - `GITEA_TOKEN` — required for `make release` / `make release-edge`
 - `APTLY_URL` / `APTLY_PASS` — required for APT deployment