Merge train: #9624 #9625 (Bun Transpiler/build, serve) + 3 gate fixes

Cargo.toml

@@ -365,6 +365,8 @@ swc_ecma_ast = "19.0"
 swc_ecma_visit = "19.0"
 swc_common = "18.0"
 swc_ecma_codegen = "21.0"
+swc_bundler = "37.0"
+swc_ecma_loader = "18.0"
 swc_ecma_transforms_base = "32.0"
 swc_ecma_transforms_react = "35.0"
 swc_ecma_transforms_typescript = "35.0"

changelog.d/9602-bun-runtime-compiler.md

@@ -0,0 +1,7 @@
+### Added
+
+- Added the native `Bun.Transpiler` and in-memory `Bun.build` subsets used by
+  runtime hook modules, including TypeScript/JSX lowering, import scanning,
+  external modules, and `onResolve`/`onLoad` plugin hooks. Build failures now
+  return useful filename and source-position logs instead of terminating the
+  process. (#9602)

changelog.d/9625-bun-serve.md

@@ -0,0 +1,8 @@
+### Bun compatibility
+
+- **`Bun.serve` and `import { serve } from "bun"` now run on Perry's native
+  HTTP server.** The facade supports ephemeral ports, hostname binding,
+  Fetch `Request`/`Response` handlers (including async returns and the `error`
+  callback), `requestIP`, observable server properties, and
+  `stop`/`ref`/`unref` lifecycle methods. TLS options fail explicitly with
+  `ERR_NOT_SUPPORTED` until native TLS support is added.

crates/perry-api-manifest/src/entries/part_4.rs

@@ -1100,6 +1100,13 @@ pub(crate) const API_MANIFEST_PART_4: &[ApiEntry] = &[
     // (Zig-std wyhash, BigInt result), and the module-level
     // `pathToFileURL` / `fileURLToPath` aliases of node:url.
     // Implementation: perry-runtime `bun_compat`.
+    class("bun", "Transpiler"),
+    method("bun", "Transpiler", false, None),
+    method("bun", "build", false, None),
+    method("bun", "transformSync", true, Some("Transpiler")),
+    method("bun", "transform", true, Some("Transpiler")),
+    method("bun", "scanImports", true, Some("Transpiler")),
+    method("bun", "scan", true, Some("Transpiler")),
     method("bun", "stringWidth", false, None),
     method("bun", "hash", false, None),
     method("bun", "deepEquals", false, None),
@@ -1114,6 +1121,14 @@ pub(crate) const API_MANIFEST_PART_4: &[ApiEntry] = &[
     method("bun", "write", false, None),
     method("bun", "spawn", false, None),
     method("bun", "Terminal", false, None),
+    method_sig(
+        "bun",
+        "serve",
+        false,
+        None,
+        &[p_any("options")],
+        TypeSpec::Any,
+    ),
     method("bun", "pathToFileURL", false, None),
     method("bun", "fileURLToPath", false, None),
     // #8537 — OpenCode compatibility coverage added these dispatch rows