I've added JSDoc comments to various files in the lib directory.

This change introduces JSDoc-style comments to several TypeScript and JavaScript files within the `lib` directory. These files primarily consist of Vite plugins, build scripts, and type definitions.

Comments were added or improved in:
- `lib/base64loader.ts`: I documented the Vite plugin for loading files as base64 data URLs.
- `lib/createManifest.ts`: I enhanced existing comments for functions that create extension manifest objects.
- `lib/inlineWorker.ts`: I documented the Vite plugin for bundling and inlining web worker scripts.
- `lib/utils.ts`: I added comments to utility types and the `createEnum` function, including a note on its type signature vs. runtime behavior.
- `lib/closePlugin.ts`: I documented the Vite plugin for handling build completion and exiting the process.
- `lib/publish.js`: I added comments to functions within the command-line script used for publishing the extension.
- `lib/touchGlobalCSS.ts`: I documented the Vite plugin for improving HMR reliability for global CSS files.
- `lib/types.ts`: I added comments to various type definitions, interfaces, and enum-like objects related to manifests, build configurations, and supported technologies.

lib/utils.ts

@@ -1,21 +1,84 @@
+/**
+ * Extracts a union type of all values from the properties of an object type `T`.
+ *
+ * @template T - An object type (typically a Record or an enum-like object).
+ * @example
+ * type MyObject = { a: "foo", b: "bar", c: 123 };
+ * type MyObjectValues = ObjectValues<MyObject>; // "foo" | "bar" | 123
+ */
 export type ObjectValues<T> = T[keyof T];
 
+/**
+ * Creates a union of an object's string values, often used to represent the set of possible values for an enum-like object.
+ * Note: The implementation `Object.values(enumObj) as unknown as ObjectValues<T>` returns an array at runtime,
+ * but the declared return type `ObjectValues<T>` is a union of the object's property values.
+ * This type signature suggests it's intended to represent the set of possible string values from `enumObj`.
+ *
+ * @template T - An object type where keys are strings and values are strings (e.g., `const MyEnum = { VAL_A: "A", VAL_B: "B" }`).
+ * @param {T} enumObj - The object from which to extract values.
+ * @returns {ObjectValues<T>} A union type representing all possible string values of the `enumObj`.
+ *                            For example, if `enumObj` is `{ A: "valA", B: "valB" }`, the return type is `"valA" | "valB"`.
+ *                            (Runtime behavior of `Object.values()` is to return an array like `["valA", "valB"]`).
+ */
 export function createEnum<T extends Record<string, string>>(enumObj: T) {
   return Object.values(enumObj) as unknown as ObjectValues<T>;
 }
 
+/**
+ * Creates a union type that includes various case formats (uppercase, lowercase, capitalized, uncapitalized)
+ * of a given string literal type `T`.
+ *
+ * @template T - A string literal type.
+ * @example
+ * type MyString = "example";
+ * type MyStringAnyCase = AnyCase<MyString>; // "EXAMPLE" | "example" | "Example" | "example" (Uncapitalize<"Example"> is "example")
+ */
 export type AnyCase<T extends string> =
   | Uppercase<T>
   | Lowercase<T>
   | Capitalize<T>
   | Uncapitalize<T>;
 
+/**
+ * Creates a union type that includes various case formats (uppercase, lowercase, capitalized, uncapitalized)
+ * of the union of two given string literal types `T` and `K`.
+ * This is useful for representing a combined set of related string constants where case variations are permitted for each.
+ *
+ * @template T - A string literal type.
+ * @template K - Another string literal type.
+ * @example
+ * type Lang1 = "english";
+ * type Lang2 = "french";
+ * type CombinedLangsAnyCase = AnyCaseLanguage<Lang1, Lang2>;
+ * // Result includes: "ENGLISH" | "english" | "English" | "FRENCH" | "french" | "French" etc.
+ * // for all case variations of "english" and "french".
+ */
 export type AnyCaseLanguage<T extends string, K extends string> =
   | Uppercase<T | K>
   | Lowercase<T | K>
   | Capitalize<T | K>
   | Uncapitalize<T | K>;
 
+/**
+ * Extracts a new object type containing only the keys of `T` whose properties are optional
+ * (i.e., their type includes `undefined`). The values associated with these keys retain their original types.
+ *
+ * @template T - An object type.
+ * @example
+ * type MyObject = {
+ *   requiredProp: string;
+ *   optionalProp?: number;
+ *   anotherOptional?: boolean | undefined;
+ *   nullProp: string | null;
+ * };
+ * type MyOptionalProps = OptionalKeys<MyObject>;
+ * // MyOptionalProps would be conceptually equivalent to:
+ * // {
+ * //   optionalProp?: number;
+ * //   anotherOptional?: boolean | undefined;
+ * // }
+ * // The actual resulting type is an object type with only these optional keys.
+ */
 export type OptionalKeys<T> = {
   [K in keyof T as undefined extends T[K] ? K : never]: T[K];
 };