fix(telemetry): downgrade TS telemetry-failure logs to debug

Telemetry is best-effort by contract — every PostHog hiccup or
network blip would print red error lines on user stderr otherwise.
Python uses logger.debug for the same paths; this restores parity.

Keeps console.error only at sites that surface a real user-facing
failure (e.g., MemoryClient init ping failed).

mem0-ts/src/client/mem0.ts

@@ -134,7 +134,7 @@ export default class MemoryClient {
       captureClientEvent("init", this, {
         client_type: "MemoryClient",
       }).catch((error: any) => {
-        console.error("Failed to capture event:", error);
+        console.debug("Failed to capture event:", error);
       });
     } catch (error: any) {
       console.error("Failed to initialize client:", error);
@@ -165,7 +165,7 @@ export default class MemoryClient {
         }
       }
     } catch (error: any) {
-      console.error("Failed to alias telemetry identity:", error);
+      console.debug("Failed to alias telemetry identity:", error);
     }
   }
 
@@ -175,7 +175,7 @@ export default class MemoryClient {
       args_count: args.length,
       keys: args.length > 0 ? args[0] : [],
     }).catch((error: any) => {
-      console.error("Failed to capture event:", error);
+      console.debug("Failed to capture event:", error);
     });
   }
 

mem0-ts/src/client/telemetry.ts

@@ -64,12 +64,12 @@ class UnifiedTelemetry implements TelemetryClient {
       });
 
       if (!response.ok) {
-        console.error("Telemetry event capture failed:", await response.text());
+        console.debug("Telemetry event capture failed:", response.status);
         return false;
       }
       return true;
     } catch (error) {
-      console.error("Telemetry event capture failed:", error);
+      console.debug("Telemetry event capture failed:", error);
       return false;
     }
   }