[L7] Snowflake async continuation uses uncancelable context, leaks on shutdown

[pradeepto]

Severity: Low

Category

Reliability

Files

cmd/main.go:432-485

Description

startSnowflakeAsyncContinuation launches a background goroutine that fetches remaining Snowflake users after preload. This goroutine:

• Uses context.Background() at line 442 so it is never canceled even when the manager stops
• Has no mechanism to report completion status to the health check
• If it fails silently (line 474) reconciliation will encounter cache misses for those users which could cause duplicate user creation in Snowflake
• Individual cache write failures at line 459 are logged but swallowed

Fix

Use a context derived from the manager's context so the goroutine gets canceled on shutdown. Add completion/error reporting that the health probe can check.