docs: update overview and team usage

Author: hadiqur

docs/technical_documentation/overview.md

@@ -37,8 +37,8 @@ This component is an imported library which is shared across multiple GitHub too
 
 ### Historic Usage Data
 
-This section gathers data from AWS S3. The Copilot usage endpoints have a limitation where they only return the last 100 days worth of information. To get around this, the project has an AWS Lambda function which runs weekly and stores data within an S3 bucket.
+This section gathers data from AWS S3. The Copilot usage endpoints have a limitation where they only return the last 28 days worth of information. To get around this, the project has an AWS Lambda function which runs weekly and stores data within an S3 bucket.
 
-### Copilot Teams Data
+### Copilot Teams Data (Deprecated - functionality removed but may be restored via alternative methods)
 
 This section gathers a list of teams within the organisation with Copilot data and updates the S3 bucket accordingly. This allows all relevant teams to be displayed within the dashboard.

docs/technical_documentation/team_usage.md

@@ -1,5 +1,7 @@
 # Copilot Team Usage
 
+Note: This functionality has been removed as of 19th March 2026 as the endpoint used to fetch metrics for team usage is being sunsetted. However, it may be restored via alternative methods in the future.
+
 ## Overview
 
 This section of the project leverages GitHub OAuth2 for user authentication, granting access to essential data.