refactor(bundler): streamline module and chunk manifest generation

- Removed unused utility exports and consolidated manifest-related functions into a single module.
- Updated bundler configuration to eliminate deprecated options and improve clarity.
- Enhanced test coverage for module map and chunk manifest functionalities.

Author: eser

.claude/skills/architecture-guidelines/references/rules.md

@@ -42,8 +42,7 @@ Example structure:
 project/
 ├── src/
 │   ├── app/           # Application code
-│   ├── components/    # Reusable components
-│   └── utils/         # Utility functions
+│   └── components/    # Reusable components
 ├── tests/             # Test files
 ├── docs/              # Documentation
 ├── public/            # Static assets

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@eser/stack",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "private": true,
   "type": "module",
   "workspaces": [

pkg/@cool/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cool/cli",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "type": "module",
   "exports": {
     ".": "./mod.ts"

pkg/@cool/lime/deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@cool/lime",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "exports": {
     ".": "./mod.ts"
   }

pkg/@cool/lime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cool/lime",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "type": "module",
   "exports": {
     ".": "./mod.ts"

pkg/@eser/app-runtime/deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@eser/app-runtime",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "exports": {
     ".": "./mod.ts"
   },

pkg/@eser/app-runtime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@eser/app-runtime",
-  "version": "4.0.18",
+  "version": "4.0.19",
   "type": "module",
   "exports": {
     ".": "./mod.ts"

pkg/@eser/bundler/README.md

@@ -340,9 +340,6 @@ interface BundlerConfig {
 
   // Optional: Base path for URL rewriting
   basePath?: string;
-
-  // Optional: Development mode
-  dev?: boolean;
 }
 ```
 
@@ -443,7 +440,6 @@ const watcher = await bundler.watch(
     codeSplitting: false,
     minify: false,
     sourcemap: "inline",
-    dev: true,
   },
   (result) => {
     if (result.success) {

pkg/@eser/bundler/backends/deno-bundler.ts

@@ -77,18 +77,26 @@ export class DenoBundlerBackend implements Bundler {
         ? undefined
         : config.sourcemap;
 
-      const result = await Deno.bundle({
+      const options: Deno.bundle.Options = {
         entrypoints: allEntrypoints,
         outputDir: tempDir,
         format: "esm",
         codeSplitting: config.codeSplitting,
         minify: config.minify,
         platform,
         sourcemap: sourcemapValue,
-        ...(config.external !== undefined && config.external.length > 0
-          ? { external: [...config.external] }
-          : {}),
-      });
+      };
+
+      // TODO(@eser) needs implementation
+      // if (config.define !== undefined) {
+      //   options.define = config.define;
+      // }
+
+      if (config.external !== undefined) {
+        options.external = config.external as string[];
+      }
+
+      const result = await Deno.bundle(options);
 
       if (!result.success) {
         const diagnostics = (result as unknown as { diagnostics?: unknown[] })
@@ -136,7 +144,9 @@ export class DenoBundlerBackend implements Bundler {
       }
     };
 
-    watchLoop().catch(() => {});
+    watchLoop().catch((error) => {
+      console.error("Watch loop error:", error);
+    });
 
     return Promise.resolve({
       stop: () => {
@@ -176,7 +186,7 @@ export class DenoBundlerBackend implements Bundler {
         scanDir = nestedDistDir;
       }
     } catch {
-      // No nested dir, use outputDir
+      // FIXME(@eser) expected: directory doesn't exist, use outputDir
     }
 
     // Collect all output files (both .js and .map files)

pkg/@eser/bundler/backends/rolldown.ts

@@ -123,6 +123,7 @@ export class RolldownBundlerBackend implements Bundler {
         input: config.entrypoints as Record<string, string>,
         external: config.external as string[] | undefined,
         plugins: this.adaptPlugins(config.plugins),
+        define: config.define as Record<string, string> | undefined,
       });
 
       const sourcemapValue: boolean | "inline" | undefined =
@@ -643,6 +644,7 @@ interface RolldownInputOptions {
   input: Record<string, string>;
   external?: string[];
   plugins?: RollupPlugin[];
+  define?: Record<string, string>;
 }
 
 interface RolldownOutputOptions {