feat(pathf): add build-time type path resolution system

Add `mingling_pathf` sub-crate and `pathf` feature for automatic
resolution of Mingling type module paths at build time. Scans source
files, identifies macro invocations via pattern matchers, and generates
mapping files consumed by `gen_program!()`.

1 files changed, 33 insertions, 0 deletions

diff --git a/mingling_pathf/test/src/test_files/test_dispatcher_clap.rs b/mingling_pathf/test/src/test_files/test_dispatcher_clap.rs
new file mode 100644
index 0000000..0ba884d
--- /dev/null
+++ b/mingling_pathf/test/src/test_files/test_dispatcher_clap.rs
@@ -0,0 +1,33 @@
+#[mingling::macros::dispatcher_clap]
+struct EntryClap1 {
+    name: String,
+    age: i32,
+}
+
+#[mingling::macros::dispatcher_clap]
+#[command(name = "greet")]
+pub struct EntryClap2 {
+    name: String,
+}
+
+#[dispatcher_clap]
+struct EntryClap3 {
+    value: String,
+}
+
+#[dispatcher_clap]
+pub struct EntryClap4 {
+    value: i32,
+}
+
+pub mod sub {
+    #[mingling::macros::dispatcher_clap]
+    struct EntryClap1 {
+        name: String,
+    }
+
+    #[dispatcher_clap]
+    struct EntryClap3 {
+        value: String,
+    }
+}