📝 [js-core] Add configuration entry to typedoc and API report

Register src/entries/configuration.ts as a typedoc entry point and add
the generated API Extractor report for the js-core configuration API.

Author: thomas-lebeau

packages/js-core/api/configuration.api.md

@@ -0,0 +1,83 @@
+## API Report File for "@datadog/js-core"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+
+// @public (undocumented)
+export type BooleanField = {
+    type: 'boolean';
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export interface ConfigurationSchema {
+    // (undocumented)
+    readonly [key: string]: FieldDef;
+}
+
+// @public (undocumented)
+export type EnumField = ({
+    type: 'enum';
+    values: readonly string[];
+    allowAll?: true;
+} & Optionality & Multiple & Strict) | ({
+    type: 'enum';
+    values: Record<string, string>;
+    allowAll?: true;
+} & Optionality & Multiple & Strict);
+
+// @public (undocumented)
+export type FieldDef = StringField | PercentageField | BooleanField | SiteField | MatchOptionField | EnumField | UnionField | SchemaField | FunctionField;
+
+// @public (undocumented)
+export type FunctionField = {
+    type: 'function';
+    signature?: ((...args: any[]) => any) | undefined;
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type InferredConfig<S extends ConfigurationSchema> = {
+    [K in keyof S]: InferOutput<S[K]>;
+};
+
+// @public
+export type MatchOption = string | RegExp | ((value: string) => boolean);
+
+// @public (undocumented)
+export type MatchOptionField = {
+    type: 'match-option';
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type PercentageField = {
+    type: 'percentage';
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type SchemaField = {
+    type: 'schema';
+    schema: ConfigurationSchema;
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type SiteField = {
+    type: 'site';
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type StringField = {
+    type: 'string';
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export type UnionField = {
+    type: 'union';
+    variants: readonly FieldDef[];
+} & Optionality & Multiple & Strict;
+
+// @public (undocumented)
+export function validateAndBuildConfiguration<S extends ConfigurationSchema>(initConfig: Record<string, unknown> | null | undefined, schema: S, display?: Display): InferredConfig<S> | undefined;
+
+// (No @packageDocumentation comment for this package)
+
+```

packages/js-core/typedoc.json

@@ -1,4 +1,10 @@
 {
   "$schema": "https://typedoc.org/schema.json",
-  "entryPoints": ["src/entries/time.ts", "src/entries/monitor.ts", "src/entries/util.ts", "src/entries/assembly.ts"]
+  "entryPoints": [
+    "src/entries/time.ts",
+    "src/entries/monitor.ts",
+    "src/entries/util.ts",
+    "src/entries/assembly.ts",
+    "src/entries/configuration.ts"
+  ]
 }