refactor!: replace build.rs with compile-time macro build steps

BREAKING CHANGE: Replace the `build`/`builds` feature system with
compile-time macro-driven generation. `gen_program!()` now automatically
invokes `build_comp!()` and `build_pathf!()` when the `comp`/`pathf`
features are enabled, eliminating the need for `build.rs` and
`[build-dependencies]` blocks.

This removes the `build` feature, the `mingling::build` module, and all
related build-time API functions. Completion scripts are now written to
`{target_directory}/mingling/` instead of `target/release/`. The
`mingling_cli` uses `build_comp!("mling")` for its custom binary name.

1 files changed, 5 insertions, 2 deletions

diff --git a/docs/dev/pages/abouts/code-verify-system.md b/docs/dev/pages/abouts/code-verify-system.md
index 929b337..20da045 100644
--- a/docs/dev/pages/abouts/code-verify-system.md
+++ b/docs/dev/pages/abouts/code-verify-system.md
@@ -125,8 +125,11 @@ Marks the block as a `build.rs` script instead of `src/main.rs`. The block code
 
 ```rust
 // BUILD TIME
-// Features: ["builds", "pathf"]
-analyze_and_build_type_mapping().unwrap();
+// Dependencies:
+// serde = "1"
+fn main() {
+    // build-time work, e.g. writing generated sources into OUT_DIR
+}
 ```
  
 ### `// Features: [...]`