types: clarify DispatchNamespace.get does not throw on missing worker (fixes #5263)

types/defines/wfp.d.ts

@@ -26,7 +26,11 @@ interface DispatchNamespace {
   * @param args Arguments to Worker script.
   * @param options Options for Dynamic Dispatch invocation.
   * @returns A Fetcher object that allows you to send requests to the Worker script.
-  * @throws If the Worker script does not exist in this dispatch namespace, an error will be thrown.
+  *
+  * Note: `get` does not validate that the named Worker script exists in the
+  * dispatch namespace. It always returns a Fetcher; if the script is missing,
+  * the resulting "Worker not found" error is surfaced when `fetch()` is
+  * invoked on the returned Fetcher.
   */
   get(name: string, args?: {[key: string]: any}, options?: DynamicDispatchOptions ): Fetcher;
 }

types/generated-snapshot/experimental/index.d.ts

@@ -15848,7 +15848,11 @@ interface DispatchNamespace {
    * @param args Arguments to Worker script.
    * @param options Options for Dynamic Dispatch invocation.
    * @returns A Fetcher object that allows you to send requests to the Worker script.
-   * @throws If the Worker script does not exist in this dispatch namespace, an error will be thrown.
+   *
+   * Note: `get` does not validate that the named Worker script exists in the
+   * dispatch namespace. It always returns a Fetcher; if the script is missing,
+   * the resulting "Worker not found" error is surfaced when `fetch()` is
+   * invoked on the returned Fetcher.
    */
   get(
     name: string,

types/generated-snapshot/experimental/index.ts

@@ -15809,7 +15809,11 @@ export interface DispatchNamespace {
    * @param args Arguments to Worker script.
    * @param options Options for Dynamic Dispatch invocation.
    * @returns A Fetcher object that allows you to send requests to the Worker script.
-   * @throws If the Worker script does not exist in this dispatch namespace, an error will be thrown.
+   *
+   * Note: `get` does not validate that the named Worker script exists in the
+   * dispatch namespace. It always returns a Fetcher; if the script is missing,
+   * the resulting "Worker not found" error is surfaced when `fetch()` is
+   * invoked on the returned Fetcher.
    */
   get(
     name: string,

types/generated-snapshot/latest/index.d.ts

@@ -15180,7 +15180,11 @@ interface DispatchNamespace {
    * @param args Arguments to Worker script.
    * @param options Options for Dynamic Dispatch invocation.
    * @returns A Fetcher object that allows you to send requests to the Worker script.
-   * @throws If the Worker script does not exist in this dispatch namespace, an error will be thrown.
+   *
+   * Note: `get` does not validate that the named Worker script exists in the
+   * dispatch namespace. It always returns a Fetcher; if the script is missing,
+   * the resulting "Worker not found" error is surfaced when `fetch()` is
+   * invoked on the returned Fetcher.
    */
   get(
     name: string,

types/generated-snapshot/latest/index.ts

@@ -15141,7 +15141,11 @@ export interface DispatchNamespace {
    * @param args Arguments to Worker script.
    * @param options Options for Dynamic Dispatch invocation.
    * @returns A Fetcher object that allows you to send requests to the Worker script.
-   * @throws If the Worker script does not exist in this dispatch namespace, an error will be thrown.
+   *
+   * Note: `get` does not validate that the named Worker script exists in the
+   * dispatch namespace. It always returns a Fetcher; if the script is missing,
+   * the resulting "Worker not found" error is surfaced when `fetch()` is
+   * invoked on the returned Fetcher.
    */
   get(
     name: string,