Update CLI tests for .peas.toml and TOML config syntax

Author: asaaki

tests/cli_tests.rs

@@ -58,7 +58,7 @@ fn test_init_creates_config() {
         .success()
         .stdout(predicate::str::contains("Initialized"));
 
-    assert!(temp_dir.path().join(".peas.yml").exists());
+    assert!(temp_dir.path().join(".peas.toml").exists());
     assert!(temp_dir.path().join(".peas").exists());
 }
 
@@ -72,7 +72,7 @@ fn test_init_with_custom_prefix() {
         .assert()
         .success();
 
-    let config = std::fs::read_to_string(temp_dir.path().join(".peas.yml")).unwrap();
+    let config = std::fs::read_to_string(temp_dir.path().join(".peas.toml")).unwrap();
     assert!(config.contains("myapp-"));
 }
 
@@ -502,9 +502,9 @@ fn test_yaml_frontmatter_config() {
         .success();
 
     // Switch config to YAML
-    let config_path = temp_dir.path().join(".peas.yml");
+    let config_path = temp_dir.path().join(".peas.toml");
     let config = std::fs::read_to_string(&config_path).unwrap();
-    let updated_config = config.replace("frontmatter: toml", "frontmatter: yaml");
+    let updated_config = config.replace("frontmatter = \"toml\"", "frontmatter = \"yaml\"");
     std::fs::write(&config_path, updated_config).unwrap();
 
     let output = peas_cmd()
@@ -559,9 +559,9 @@ fn test_toml_frontmatter_preserved_on_update() {
     let id = json["id"].as_str().unwrap();
 
     // Switch config to YAML
-    let config_path = temp_dir.path().join(".peas.yml");
+    let config_path = temp_dir.path().join(".peas.toml");
     let config = std::fs::read_to_string(&config_path).unwrap();
-    let updated_config = config.replace("frontmatter: toml", "frontmatter: yaml");
+    let updated_config = config.replace("frontmatter = \"toml\"", "frontmatter = \"yaml\"");
     std::fs::write(&config_path, updated_config).unwrap();
 
     // Update the pea - should preserve TOML format
@@ -601,9 +601,9 @@ fn test_yaml_frontmatter_preserved_on_update() {
         .success();
 
     // Switch config to YAML
-    let config_path = temp_dir.path().join(".peas.yml");
+    let config_path = temp_dir.path().join(".peas.toml");
     let config = std::fs::read_to_string(&config_path).unwrap();
-    let yaml_config = config.replace("frontmatter: toml", "frontmatter: yaml");
+    let yaml_config = config.replace("frontmatter = \"toml\"", "frontmatter = \"yaml\"");
     std::fs::write(&config_path, &yaml_config).unwrap();
 
     let output = peas_cmd()