chore(vendor): import pi 0.85.1

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: d981de1229ef899957bbe968bc8dcda02a21f477

third_party/pi/packages/chord/src/node/manifest.ts

@@ -0,0 +1,39 @@
+export const FACET_BUNDLE_FORMAT = "chord.facet-bundle";
+export const FACET_BUNDLE_FORMAT_VERSION = 2;
+export const FACET_BUNDLE_MANIFEST_FILE = "chord-facets.json";
+export const FACET_BUNDLE_ARTIFACT_FORMAT = "chord.facet-bundle-artifact";
+export const FACET_BUNDLE_ARTIFACT_FORMAT_VERSION = 2;
+
+export interface FacetBundleEntry {
+	/** Content-addressed CommonJS filename relative to the manifest. */
+	readonly file: string;
+	/** SHA-256 subresource-integrity value for the JavaScript file. */
+	readonly integrity: string;
+	/** Imports intentionally left for the loading application to resolve. */
+	readonly externalImports: readonly string[];
+	/** Source map filename relative to the manifest, when emitted. */
+	readonly sourceMap?: string;
+}
+
+export interface FacetBundleManifest {
+	readonly format: typeof FACET_BUNDLE_FORMAT;
+	readonly formatVersion: typeof FACET_BUNDLE_FORMAT_VERSION;
+	readonly plugin: FacetBundlePlugin;
+	readonly entries: Readonly<Record<string, FacetBundleEntry>>;
+}
+
+export interface FacetBundlePlugin {
+	readonly id: string;
+	readonly version?: string;
+}
+
+/** One self-contained manifest entry suitable for storage or transport to another Node host. */
+export interface FacetBundleArtifact {
+	readonly format: typeof FACET_BUNDLE_ARTIFACT_FORMAT;
+	readonly formatVersion: typeof FACET_BUNDLE_ARTIFACT_FORMAT_VERSION;
+	readonly plugin: FacetBundlePlugin;
+	readonly entryName: string;
+	readonly entry: FacetBundleEntry;
+	readonly source: string;
+	readonly sourceMapContents?: string;
+}