fix(13-05): catalog air config watches css and rebuilds tailwind on change

backend/.air-catalog.toml

@@ -0,0 +1,11 @@
+root = "."
+tmp_dir = "tmp"
+
+[build]
+cmd = "templ generate && ./bin/tailwindcss -i tailwind.input.css -o static/tailwind.css && go build -tags catalog -o ./tmp/web ./cmd/web"
+bin = "./tmp/web"
+include_ext = ["go", "templ", "css"]
+exclude_dir = ["tmp", "bin", "static", ".git", "internal/db/sqlc"]
+exclude_regex = [".*_templ\\.go$"]
+delay = 200
+stop_on_error = true

backend/justfile

@@ -138,9 +138,9 @@ worker: db-up
     go run ./cmd/worker
 
 # Run the component catalog with live-reload on localhost:8080/ui-catalog (dev-only).
+# Watches .go, .templ, and .css — rebuilds Tailwind + Go on any change.
 # Visit http://localhost:8080/ui-catalog to review all 11 component sections.
 catalog:
-    just generate
     DATABASE_URL='{{ database_url }}' \
     S3_ENDPOINT='{{ s3_endpoint }}' \
     S3_BUCKET='{{ s3_bucket }}' \
@@ -148,7 +148,7 @@ catalog:
     S3_ACCESS_KEY='{{ s3_access_key }}' \
     S3_SECRET_KEY='{{ s3_secret_key }}' \
     S3_USE_PATH_STYLE='{{ s3_use_path_style }}' \
-    air -c .air.toml --build.cmd "templ generate && go build -tags catalog -o ./tmp/web ./cmd/web"
+    air -c .air-catalog.toml
 
 test:
     just generate