Restore export cleanup after rebase

Re-apply the small set of export-surface and change-file differences that were lost when the branch was rebased onto releases/fast-element-v3.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: janechu

change/@microsoft-fast-router-update-exports.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "Update internal fast-element imports to use the focused export entrypoints.",
+  "packageName": "@microsoft/fast-router",
+  "email": "7559015+janechu@users.noreply.github.com",
+  "dependentChangeType": "none"
+}

examples/todo-app/src/todo-app.template.ts

@@ -35,7 +35,7 @@ export const template = html<TodoApp>`
                         &times;
                     </button>
                 </li>
-            `
+            `,
         )}
     </ul>
 `;

packages/fast-element/ARCHITECTURE_INTRO.md

@@ -1,10 +1,13 @@
 # Introduction
 
-This document (and the linked documents) explains how the exports and side effects of `@microsoft/fast-element` are used to create custom elements.
+This document (and the linked documents) explains how the exports and side
+effects of `@microsoft/fast-element` are used to create custom elements,
+including the dedicated binding, hydration, and `declarative.js`
+sub-entrypoints.
 
 ## Glossary
 
 - [Overview](./ARCHITECTURE_OVERVIEW.md): How the `@microsoft/fast-element` should be used by a developer and what code is executed during the first render.
 - [`FASTElement`](./ARCHITECTURE_FASTELEMENT.md): How the `FASTElement` is architected.
 - [`html` tagged template literal](./ARCHITECTURE_HTML_TAGGED_TEMPLATE_LITERAL.md): How the `html` tagged template literal takes and converts the contents into a `ViewTemplate`.
-- [`Updates` queue](./ARCHITECTURE_UPDATES.md): How updates to attributes and observables are processed.
+- [`Updates` queue](./ARCHITECTURE_UPDATES.md): How updates to attributes and observables are processed.

packages/fast-element/src/components/element-hydration.ts

@@ -3,4 +3,25 @@ import { registerFAST } from "./platform.js";
 
 registerFAST().addMessages(debugMessages);
 
-export * from "./declarative/index.js";
+export type {
+    AttributeMapConfig,
+    CachedPathMap,
+    ElementOptions,
+    ElementOptionsDictionary,
+    HydrationLifecycleCallbacks,
+    JSONSchema,
+    ObserverMapConfig,
+    ObserverMapPathEntry,
+    ObserverMapPathNode,
+    ResolvedStringsAndValues,
+} from "./declarative/index.js";
+export {
+    AttributeMap,
+    AttributeMapOption,
+    ObserverMap,
+    ObserverMapOption,
+    Schema,
+    schemaRegistry,
+    TemplateElement,
+    TemplateParser,
+} from "./declarative/index.js";

packages/fast-element/src/declarative.ts

@@ -1,3 +1,14 @@
 export { reactive } from "./reactive.js";
+export type {
+    ComputedBuilder,
+    ComputedInitializer,
+    ComputedSetupCallback,
+    ComputedState,
+    OwnedState,
+    ReadonlyOwnedState,
+    ReadonlyState,
+    State,
+    StateOptions,
+} from "./state.js";
+export { computedState, ownedState, state } from "./state.js";
 export { watch } from "./watch.js";
-export * from "./state.js";

packages/fast-element/src/state/exports.ts

@@ -1,3 +1,4 @@
+export { Fake } from "./fakes.js";
+export type { Fixture, FixtureOptions } from "./fixture.js";
+export { fixture, uniqueElementName } from "./fixture.js";
 export { timeout } from "./timeout.js";
-export * from "./fixture.js";
-export * from "./fakes.js";