Logger metrics (#7867)

* Adjust datalake abstraction

(cherry picked from commit 8ba6a8d45b1bd5698afbd06d9e858a91789f0ea6)

* Just be really really specific

(cherry picked from commit 920198959659329a7f7f7282a1293aaad198d8e3)

* Add metric method to logger, replace datalake calls with new method

(cherry picked from commit 7a026bbeae75514b64f928d7ff59707c518fd5e5)

* Clarify types

(cherry picked from commit 422b150deb158a70ef37e8a456d91bf26cd0b1bc)

src/logger/types.ts

@@ -9,6 +9,12 @@ export enum LogContext {
   Notifications = 'notifications',
   ConversationAgent = 'conversation-agent',
   DMsAgent = 'dms-agent',
+
+  /**
+   * METRIC IS FOR INTERNAL USE ONLY, don't create any other loggers using this
+   * context
+   */
+  Metric = 'metric',
 }
 
 export enum LogLevel {
@@ -33,9 +39,9 @@ export type Transport = (
  */
 export type Metadata = {
   /**
-   * Reserved for appending `LogContext` to logging payloads
+   * Reserved for appending `LogContext` in logging payloads
    */
-  context?: undefined
+  __context__?: undefined
 
   /**
    * Applied as Sentry breadcrumb types. Defaults to `default`.