docs: Clarify the behavior of setProviderAndWait (#1180)

## This PR

- Updates readme examples to include a try/catch around
setProviderAndWait
- Improves the setProviderAndWait JS Doc

### Related Issues

Fixes #1179

### Notes

https://cloud-native.slack.com/archives/C0344AANLA1/p1745326882304199

---------

Signed-off-by: Michael Beemer <beeme1mr@users.noreply.github.com>

packages/server/README.md

@@ -75,7 +75,11 @@ yarn add @openfeature/server-sdk @openfeature/core
 import { OpenFeature } from '@openfeature/server-sdk';
 
 // Register your feature flag provider
-await OpenFeature.setProviderAndWait(new YourProviderOfChoice());
+try {
+  await OpenFeature.setProviderAndWait(new YourProviderOfChoice());
+} catch (error) {
+  console.error('Failed to initialize provider:', error);
+}
 
 // create a new client
 const client = OpenFeature.getClient();

packages/server/src/open-feature.ts

@@ -82,7 +82,7 @@ export class OpenFeatureAPI
    * Setting a provider supersedes the current provider used in new and existing unbound clients.
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(provider: Provider): Promise<void>;
   /**
@@ -92,7 +92,7 @@ export class OpenFeatureAPI
    * @param {string} domain The name to identify the client
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(domain: string, provider: Provider): Promise<void>;
   async setProviderAndWait(domainOrProvider?: string | Provider, providerOrUndefined?: Provider): Promise<void> {

packages/web/README.md

@@ -75,7 +75,11 @@ yarn add @openfeature/web-sdk @openfeature/core
 import { OpenFeature } from '@openfeature/web-sdk';
 
 // Register your feature flag provider
-await OpenFeature.setProviderAndWait(new YourProviderOfChoice());
+try {
+  await OpenFeature.setProviderAndWait(new YourProviderOfChoice());
+} catch (error) {
+  console.error('Failed to initialize provider:', error);
+}
 
 // create a new client
 const client = OpenFeature.getClient();
@@ -121,7 +125,11 @@ Once you've added a provider as a dependency, it can be registered with OpenFeat
 To register a provider and ensure it is ready before further actions are taken, you can use the `setProviderAndWait` method as shown below:
 
 ```ts
-await OpenFeature.setProviderAndWait(new MyProvider());
+try {
+  await OpenFeature.setProviderAndWait(new MyProvider());
+} catch (error) {
+  console.error('Failed to initialize provider:', error);
+}
 ```
 
 #### Synchronous

packages/web/src/open-feature.ts

@@ -77,7 +77,7 @@ export class OpenFeatureAPI
    * Setting a provider supersedes the current provider used in new and existing unbound clients.
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(provider: Provider): Promise<void>;
   /**
@@ -87,7 +87,7 @@ export class OpenFeatureAPI
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @param {EvaluationContext} context The evaluation context to use for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(provider: Provider, context: EvaluationContext): Promise<void>;
   /**
@@ -97,7 +97,7 @@ export class OpenFeatureAPI
    * @param {string} domain The name to identify the client
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(domain: string, provider: Provider): Promise<void>;
   /**
@@ -108,7 +108,7 @@ export class OpenFeatureAPI
    * @param {Provider} provider The provider responsible for flag evaluations.
    * @param {EvaluationContext} context The evaluation context to use for flag evaluations.
    * @returns {Promise<void>}
-   * @throws Uncaught exceptions thrown by the provider during initialization.
+   * @throws {Error} If the provider throws an exception during initialization.
    */
   setProviderAndWait(domain: string, provider: Provider, context: EvaluationContext): Promise<void>;
   async setProviderAndWait(