Remove legacy [vendor] config (which was never supported)

This was the original spec for workspace vendoring, and was later
simplified to workspace.vendor, but this was never removed. Safe because
we never did anything with this.

Author: akhilles

crates/pcb-zen-core/src/config.rs

@@ -57,10 +57,6 @@ pub struct PcbToml {
     #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
     pub patch: BTreeMap<String, PatchSpec>,
 
-    /// Vendor configuration (V2 only)
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub vendor: Option<VendorConfig>,
-
     /// Access control configuration section
     #[serde(skip_serializing_if = "Option::is_none")]
     pub access: Option<AccessConfig>,
@@ -568,85 +564,6 @@ impl std::fmt::Display for Lockfile {
     }
 }
 
-/// V2 Vendor configuration
-///
-/// Controls which dependencies are vendored. Dependencies are always resolved
-/// from the vendor directory first if present, falling back to network fetch.
-///
-/// # Example (Vendor Everything)
-/// ```toml
-/// [vendor]
-/// directory = "vendor"
-/// match = ["*"]
-/// ```
-///
-/// # Example (Selective Vendoring)
-/// ```toml
-/// [vendor]
-/// directory = "vendor"
-/// match = [
-///     "github.com/diodeinc/registry/reference/ti",
-///     "github.com/diodeinc/stdlib"
-/// ]
-/// ```
-///
-/// # Example (Vendor All Registry Components)
-/// ```toml
-/// [vendor]
-/// directory = "vendor"
-/// match = ["github.com/diodeinc/registry/reference"]
-/// ```
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct VendorConfig {
-    /// Directory where vendored dependencies are stored
-    /// Defaults to "vendor" if not specified
-    #[serde(default = "default_vendor_directory")]
-    pub directory: String,
-
-    /// List of package prefixes to vendor
-    ///
-    /// **Default: vendor everything** (empty list = all packages)
-    ///
-    /// Examples:
-    /// - `[]` (empty/default) → vendors all dependencies
-    /// - `["*"]` → vendors all dependencies (explicit)
-    /// - `["github.com/org/repo"]` → vendors only packages matching this prefix
-    /// - `["prefix1", "prefix2"]` → vendors packages matching any prefix
-    #[serde(default, rename = "match")]
-    pub match_patterns: Vec<String>,
-}
-
-impl VendorConfig {
-    /// Check if a package should be vendored based on match patterns
-    ///
-    /// # Arguments
-    /// * `package_url` - The package URL (e.g., "github.com/diodeinc/stdlib")
-    ///
-    /// # Returns
-    /// `true` if the package matches any vendor pattern
-    pub fn should_vendor(&self, package_url: &str) -> bool {
-        // Empty patterns means vendor everything (default behavior)
-        if self.match_patterns.is_empty() {
-            return true;
-        }
-
-        // Check for wildcard
-        if self.match_patterns.contains(&"*".to_string()) {
-            return true;
-        }
-
-        // Check if package URL matches any prefix pattern
-        self.match_patterns
-            .iter()
-            .any(|pattern| package_url.starts_with(pattern))
-    }
-}
-
-/// Default vendor directory
-fn default_vendor_directory() -> String {
-    "vendor".to_string()
-}
-
 /// Default members pattern
 pub fn default_members() -> Vec<String> {
     vec![
@@ -1111,103 +1028,19 @@ name = "TestBoard"
     }
 
     #[test]
-    fn test_v2_vendor_config() {
+    fn test_workspace_vendor_config() {
         let content = r#"
 [workspace]
 pcb-version = "0.3"
-
-[board]
-name = "Test"
-path = "test.zen"
-
-[vendor]
-directory = "my-vendor"
-match = ["github.com/diodeinc/registry/reference/ti"]
+vendor = ["github.com/diodeinc/registry/reference/ti"]
 "#;
 
         let config = PcbToml::parse(content).unwrap();
-        let vendor = config.vendor.as_ref().unwrap();
-        assert_eq!(vendor.directory, "my-vendor");
+        let workspace = config.workspace.as_ref().unwrap();
         assert_eq!(
-            vendor.match_patterns,
+            workspace.vendor,
             vec!["github.com/diodeinc/registry/reference/ti"]
         );
-
-        // Test should_vendor
-        assert!(vendor.should_vendor("github.com/diodeinc/registry/reference/ti/tps54331"));
-        assert!(!vendor.should_vendor("github.com/diodeinc/stdlib"));
-    }
-
-    #[test]
-    fn test_v2_vendor_config_defaults() {
-        let content = r#"
-[workspace]
-pcb-version = "0.3"
-
-[board]
-name = "Test"
-path = "test.zen"
-
-[vendor]
-"#;
-
-        let config = PcbToml::parse(content).unwrap();
-        let vendor = config.vendor.as_ref().unwrap();
-        assert_eq!(vendor.directory, "vendor"); // default
-        assert!(vendor.match_patterns.is_empty()); // default empty = vendor all
-
-        // Empty patterns should vendor everything
-        assert!(vendor.should_vendor("github.com/diodeinc/stdlib"));
-        assert!(vendor.should_vendor("github.com/any/package"));
-    }
-
-    #[test]
-    fn test_v2_workspace_vendor_config() {
-        let content = r#"
-[workspace]
-pcb-version = "0.3"
-members = ["boards/*"]
-
-[vendor]
-directory = "workspace-vendor"
-match = ["github.com/diodeinc/registry/reference"]
-"#;
-
-        let config = PcbToml::parse(content).unwrap();
-        let vendor = config.vendor.as_ref().unwrap();
-        assert_eq!(vendor.directory, "workspace-vendor");
-        assert_eq!(
-            vendor.match_patterns,
-            vec!["github.com/diodeinc/registry/reference"]
-        );
-
-        // Test should_vendor with workspace pattern
-        assert!(vendor.should_vendor("github.com/diodeinc/registry/reference/ti/tps54331"));
-        assert!(!vendor.should_vendor("github.com/diodeinc/stdlib"));
-    }
-
-    #[test]
-    fn test_v2_vendor_wildcard() {
-        let content = r#"
-[workspace]
-pcb-version = "0.3"
-
-[board]
-name = "Test"
-path = "test.zen"
-
-[vendor]
-match = ["*"]
-"#;
-
-        let config = PcbToml::parse(content).unwrap();
-        let vendor = config.vendor.as_ref().unwrap();
-        assert_eq!(vendor.match_patterns, vec!["*"]);
-
-        // Wildcard should vendor everything
-        assert!(vendor.should_vendor("github.com/diodeinc/stdlib"));
-        assert!(vendor.should_vendor("github.com/any/package"));
-        assert!(vendor.should_vendor("gitlab.com/kicad/symbols"));
     }
 
     #[test]