feat: add --config-file CLI flag for YAML config

app/Main.hs

@@ -11,6 +11,7 @@ import qualified Options.Applicative as Opts
 import System.IO (BufferMode (NoBuffering), hSetBuffering, stderr, stdout)
 
 import qualified Roux
+import qualified Roux.Config as Config
 
 -- ---------------------------------------------------------------------------
 -- CLI options
@@ -20,6 +21,7 @@ data Options = Options
     { optHost :: String
     , optPort :: Int
     , optRecipeDir :: FilePath
+    , optConfigFile :: FilePath
     }
 
 optionsParser :: Opts.Parser Options
@@ -49,6 +51,13 @@ optionsParser =
                 <> Opts.value "recipes"
                 <> Opts.showDefault
             )
+        <*> Opts.strOption
+            ( Opts.long "config-file"
+                <> Opts.metavar "FILE"
+                <> Opts.help "Path to YAML configuration file"
+                <> Opts.value "roux-config.yaml"
+                <> Opts.showDefault
+            )
 
 main :: IO ()
 main = do
@@ -71,6 +80,9 @@ main = do
 
     putStrLn $ "[roux] scanning recipes from " <> optRecipeDir opts
     putStrLn $ "[roux] listening on " <> optHost opts <> ":" <> show (optPort opts)
+    putStrLn $ "[roux] config file: " <> optConfigFile opts
 
+    -- Load config (file may be missing; LLM features disabled gracefully)
+    _config <- Config.loadConfig (optConfigFile opts)
     waiApp <- Roux.app (optRecipeDir opts)
     Warp.runSettings settings waiApp