chore: reorganize dev tools into dev/ directory and consolidate configsHEADmain

Move CI, dev tools, and configs from root-level scattered locations into
a
unified `dev/` directory structure. Update all references across build
scripts, documentation, and editor configurations.

Also consolidate editor config generation into build.rs for automated
synchronization of rust-analyzer settings across VS Code and Zed.

1 files changed, 54 insertions, 0 deletions

diff --git a/dev/ci/src/task/cmd_test.rs b/dev/ci/src/task/cmd_test.rs
new file mode 100644
index 0000000..5b9f55a
--- /dev/null
+++ b/dev/ci/src/task/cmd_test.rs
@@ -0,0 +1,54 @@
+use std::ffi::OsString;
+use std::path::Path;
+
+use mingling::{
+    Grouped, Routable,
+    macros::{buffer, command, renderer},
+    res::ResExitCode,
+};
+
+use crate::Next;
+use crate::res::{Manifests, ResCrateConfig};
+use crate::task::run::{location, run_parallel_checks};
+
+#[command(node = "test-all")]
+pub async fn test_all(manifests: &Manifests, config: &ResCrateConfig) -> Next {
+    let tasks = manifests
+        .package_dirs
+        .iter()
+        .map(|(name, path)| {
+            let args = config.test_command(name).map_or_else(
+                || test_args(path),
+                |cmd| cmd.iter().map(|s| OsString::from(s.as_str())).collect(),
+            );
+            (name.clone(), location(path), args)
+        })
+        .collect();
+    let fail_count = run_parallel_checks("Test-All", "Testing", tasks).await;
+    ResultTestAll { fail_count }.to_chain()
+}
+
+/// Default: `cargo test --manifest-path <path>` (crates without a
+/// `mingling-ci.toml` override).
+fn test_args(path: &Path) -> Vec<OsString> {
+    vec![
+        "cargo".into(),
+        "test".into(),
+        "--manifest-path".into(),
+        path.as_os_str().to_os_string(),
+    ]
+}
+
+/// Number of packages that failed tests.
+#[derive(Grouped)]
+pub struct ResultTestAll {
+    pub fail_count: usize,
+}
+
+/// Silently sets a non-zero exit code when any test failed.
+#[renderer(buffer)]
+pub fn render_test_all(r: ResultTestAll, exit_code: &mut ResExitCode) {
+    if r.fail_count > 0 {
+        exit_code.exit_code = 1;
+    }
+}