chore(telemetry): satisfy CI lint and prettier

- Apply prettier to TelemetryClientProvider.test.ts (sed-edits in the
  prior commit didn't preserve formatting).
- Silence eslint `no-await-in-loop` on the auth-context fall-through
  in TelemetryClient.getConnectionProvider — sequential by intent.
- Drop the empty public constructor on TelemetryClientProvider; leave
  a comment explaining the singleton + test-friendly construction
  contract.

Co-authored-by: Isaac

Author: samikshya-db

lib/telemetry/TelemetryClient.ts

@@ -130,6 +130,10 @@ class TelemetryClient implements IClientContext {
     let lastErr: unknown;
     for (const ctx of this.contexts) {
       try {
+        // Sequential fall-through is intentional — each context returns the
+        // same shared connection provider; we try the next registrant only
+        // when the current head is unusable.
+        // eslint-disable-next-line no-await-in-loop
         return await ctx.getConnectionProvider();
       } catch (err) {
         lastErr = err;

lib/telemetry/TelemetryClientProvider.ts

@@ -49,12 +49,10 @@ class TelemetryClientProvider {
 
   private softLimitWarned = false;
 
-  /**
-   * Production code should use `TelemetryClientProvider.getInstance()` for
-   * the process-wide singleton. The constructor remains public for unit
-   * tests that need an isolated provider with its own map.
-   */
-  public constructor() {}
+  // Production code should use `TelemetryClientProvider.getInstance()` for
+  // the process-wide singleton. The constructor remains public so unit tests
+  // can build an isolated provider with its own map. Deliberate no-op body —
+  // initial state is set inline on the field declarations above.
 
   static getInstance(): TelemetryClientProvider {
     if (!TelemetryClientProvider.instance) {

tests/unit/telemetry/TelemetryClientProvider.test.ts

@@ -32,7 +32,6 @@ describe('TelemetryClientProvider', () => {
 
       expect(provider.getActiveClients().size).to.equal(0);
     });
-
   });
 
   describe('getOrCreateClient', () => {