make check: include blogex in the cheap static gate

Root check now loops app then blogex then the pin check, mirroring the shape
the Lens pass will use. blogex gains a check target (compile with warnings
fatal + format); credo is a marked slot until its dep exists, and the gate
never claims a sensor it did not run.

Makefile

@@ -1,11 +1,17 @@
 # Makefile for Firehose monorepo
 
+MISE_BIN ?= mise
+
 .PHONY: check precommit deps compile test test-elisp format
 
-# Common check target that runs all static analysis
+# Cheap static gate over both apps, cheapest first. No database, no coverage:
+# this is the loop you run freely while working and before every commit.
 check:
-	@echo "Running static analysis..."
-	@make -C app MISE_BIN=mise check
+	@echo "==> check: app (credo --strict, format)"
+	@$(MAKE) -C app MISE_BIN=$(MISE_BIN) check
+	@echo "==> check: blogex (compile, format)"
+	@$(MAKE) -C blogex MISE_BIN=$(MISE_BIN) check
+	@echo "==> check: toolchain pins"
 	@bash scripts/check-pins.sh
 
 # Precommit target for CI/pre-commit hooks