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, 11 insertions, 8 deletions

diff --git a/docs/_zh_CN/pages/advanced/1-completion.md b/docs/_zh_CN/pages/advanced/1-completion.md
index d70786e..290fab0 100644
--- a/docs/_zh_CN/pages/advanced/1-completion.md
+++ b/docs/_zh_CN/pages/advanced/1-completion.md
@@ -11,13 +11,6 @@ Mingling 的补全是**完全动态**的——没有静态的补全文件，而�
 # Cargo.toml
 [dependencies.mingling]
 features = ["comp"]
- 
-[build-dependencies.mingling]
-features = [
-    "comp",
-    # 启用 `build` 特性以提供构建期支持
-    "build"
-]
 ```
  
 ## 工作原理
@@ -72,8 +65,18 @@ suggest! {
 
 ## 生成补全脚本
 
-在 `build.rs` 中调用 `build_comp_scripts` 生成补全脚本（需要 `builds` + `comp` 特性）。
+开启 `comp` 特性后，`gen_program!()` 会在编译期自动调用 `build_comp!()`，生成以 `CARGO_PKG_NAME` 命名的补全脚本到 `target/mingling/`。
+
+如果你的二进制名与 crate 名不同，可以手动调用 `build_comp!()` 并指定二进制名：
 
+```rust
+// Features: ["comp"]
+@@@use mingling::macros::build_comp;
+@@@fn example() {
+build_comp!("mybin");
+@@@}
+```
+ 
 详见 [example-completion](https://mingling-rs.github.io/mingling/docs/example-viewer.html?name=example-completion)。
 
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