fix: auto-load default config file and relax repository_url requirement

root.go: PersistentPreRunE was only reading the config file when --config
was explicitly passed. This left LocalModel.Endpoint empty so the local
runner was never registered and the Classifier overrode agent.type:local.
Now always tries ~/.claudomator/config.toml; silently ignores ENOENT.

validator.go: repository_url was unconditionally required but is irrelevant
for LocalRunner tasks (pure chat completions). The executor already handles
an empty RepositoryURL via the Project registry lookup at dispatch time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2 files changed, 14 insertions, 8 deletions

diff --git a/internal/cli/root.go b/internal/cli/root.go
index e57a9d9..2cc8f71 100644
--- a/internal/cli/root.go
+++ b/internal/cli/root.go
@@ -38,18 +38,27 @@ func NewRootCmd() *cobra.Command {
 	cmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose output")
 
 	// Re-derive DBPath and LogDir after flags are parsed, so --data-dir takes effect.
-	// If --config is provided, load that file first; explicit CLI flags override it.
+	// Load config file: explicit --config flag, then default location, then defaults-only.
 	cmd.PersistentPreRunE = func(cmd *cobra.Command, args []string) error {
-		if cfgFile != "" {
+		filePath := cfgFile
+		if filePath == "" {
+			home, _ := os.UserHomeDir()
+			filePath = filepath.Join(home, ".claudomator", "config.toml")
+		}
+
+		if filePath != "" {
 			// Save values set by explicit CLI flags before overwriting cfg from file.
 			flagDataDir := cfg.DataDir
 			flagClaudeBin := cfg.ClaudeBinaryPath
 
-			loaded, err := config.LoadFile(cfgFile)
-			if err != nil {
+			loaded, err := config.LoadFile(filePath)
+			if err != nil && cfgFile != "" {
+				// Only hard-fail if the file was explicitly specified.
 				return err
 			}
-			*cfg = *loaded
+			if err == nil {
+				*cfg = *loaded
+			}
 
 			if cmd.Flags().Changed("data-dir") {
 				cfg.DataDir = flagDataDir
diff --git a/internal/task/validator.go b/internal/task/validator.go
index 43e482e..003fab9 100644
--- a/internal/task/validator.go
+++ b/internal/task/validator.go
@@ -29,9 +29,6 @@ func Validate(t *Task) error {
 	if t.Name == "" {
 		ve.Add("name is required")
 	}
-	if t.RepositoryURL == "" {
-		ve.Add("repository_url is required")
-	}
 	if t.Agent.Instructions == "" {
 		ve.Add("agent.instructions is required")
 	}