refactor(types): moved bun asset module declarations into shared types file

- Removed the obsolete `bun-imports.d.ts` file from `packages/coding-agent/src`.
- Consolidated the `*.css`, `*/template.js`, and `*.generated.js` module text-import declarations into `types/assets/index.d.ts`.

packages/coding-agent/src/bun-imports.d.ts

@@ -1,45 +0,0 @@
-/**
- * Type declarations for Bun's import attributes.
- * These allow importing non-JS files as text at build time.
- */
-
-// Markdown files imported as text
-declare module "*.md" {
-	const content: string;
-	export default content;
-}
-
-// Text files imported as text
-declare module "*.txt" {
-	const content: string;
-	export default content;
-}
-
-// Python files imported as text
-declare module "*.py" {
-	const content: string;
-	export default content;
-}
-
-// Lark grammar files imported as text
-declare module "*.lark" {
-	const content: string;
-	export default content;
-}
-
-// Session-export template assets imported as text.
-// No `*.html` declaration: bun-types claims that pattern as HTMLBundle, so the
-// text import in src/export/html/index.ts casts at the use site instead.
-declare module "*.css" {
-	const content: string;
-	export default content;
-}
-declare module "*/template.js" {
-	const content: string;
-	export default content;
-}
-
-declare module "*.generated.js" {
-	const content: string;
-	export default content;
-}

types/assets/index.d.ts

@@ -23,6 +23,24 @@ declare module "*.bdf" {
 	export default content;
 }
 
+// Session-export template assets imported as text (coding-agent src/export/html).
+// No `*.html` declaration: bun-types claims that pattern as HTMLBundle, so the
+// text import casts at the use site instead.
+declare module "*.css" {
+	const content: string;
+	export default content;
+}
+
+declare module "*/template.js" {
+	const content: string;
+	export default content;
+}
+
+declare module "*.generated.js" {
+	const content: string;
+	export default content;
+}
+
 // turndown-plugin-gfm has no published types
 declare module "turndown-plugin-gfm" {
 	import type TurndownService from "turndown";