fix(site): add astro check CI and reduce errors/hints (#1109)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

site/scripts/api-docs-builder/src/tests/fixtures/monorepo/packages/html/src/player/create-player.ts

@@ -8,6 +8,6 @@ interface HtmlPlayerOptions {
 }
 
 /** Create an HTML player instance. */
-export function createPlayer(options: HtmlPlayerOptions): HtmlPlayerInstance {
+export function createPlayer(_options: HtmlPlayerOptions): HtmlPlayerInstance {
   return {} as HtmlPlayerInstance;
 }

site/scripts/api-docs-builder/src/tests/fixtures/monorepo/packages/react/src/player/context.tsx

@@ -11,6 +11,6 @@ interface StoreState {
 /** Access the player store or select state from it. */
 export function usePlayer(): PlayerStore;
 export function usePlayer<R>(selector: (state: StoreState) => R): R;
-export function usePlayer<R>(selector?: (state: StoreState) => R): PlayerStore | R {
+export function usePlayer<R>(_selector?: (state: StoreState) => R): PlayerStore | R {
   return {} as PlayerStore | R;
 }

site/scripts/api-docs-builder/src/tests/fixtures/monorepo/packages/react/src/player/create-player.ts

@@ -8,6 +8,6 @@ interface PlayerOptions {
 }
 
 /** Create a React player instance. */
-export function createPlayer(options?: PlayerOptions): PlayerInstance {
+export function createPlayer(_options?: PlayerOptions): PlayerInstance {
   return {} as PlayerInstance;
 }

site/scripts/api-docs-builder/src/tests/fixtures/monorepo/packages/store/src/html/controllers/snapshot-controller.ts

@@ -25,7 +25,7 @@ export class SnapshotController<S, R = S> implements ReactiveController {
    * @param state - The store to snapshot.
    */
   constructor(host: ReactiveControllerHost, state: Store<S>);
-  constructor(host: ReactiveControllerHost, state: Store<S>, selector?: (state: S) => R) {
+  constructor(host: ReactiveControllerHost, _state: Store<S>, _selector?: (state: S) => R) {
     host.addController(this);
   }
 

site/scripts/api-docs-builder/src/tests/fixtures/monorepo/packages/store/src/react/hooks/use-store.ts

@@ -5,6 +5,6 @@ interface Store<S> {
 /** Subscribe to a store. */
 export function useStore<S>(store: Store<S>): S;
 export function useStore<S, R>(store: Store<S>, selector: (state: S) => R): R;
-export function useStore<S, R>(store: Store<S>, selector?: (state: S) => R): S | R {
+export function useStore<S, R>(_store: Store<S>, _selector?: (state: S) => R): S | R {
   return {} as S | R;
 }