Docker run requires AWS mount for profile detection (UX improvement)

[MaheshShukla1]

Problem

When running IAM X-Ray via Docker without mounting ~/.aws, the app fails to detect AWS profiles.

While this is technically expected behavior, the error message is confusing for new users.

Current Behavior

• Docker container runs successfully
• AWS Profile mode shows "profile not found"
• User does not clearly understand that a volume mount is required

Expected Behavior

• Clear and friendly error message
• Actionable instructions (mount ~/.aws or use env keys or Demo mode)
• Link to README section

Impact

High confusion for first-time users trying AWS Profile mode.

Proposed Fix

• Improve error messaging in session creation
• Improve README Docker examples
• Add UI hint when no profiles are detected

Environment

• Version: v0.1.0-beta
• OS: Windows / Mac / Linux
• Docker: yes