'/usage' shows no data on personal subscription; 'Fast mode disabled by your organization' is misleading

Description

On a personal subscription plan (not an organization/team account), two issues:

1. /usage command doesn't work — the status dialog appears and immediately dismisses without showing any usage data. Output is just Status dialog dismissed.

1. Misleading "Fast mode" message — debug log is filled with hundreds of lines saying:

``
Fast mode unavailable: Fast mode has been disabled by your organization
``
This is confusing because there is no organization — it's a personal subscription. The message implies an org admin disabled it, when in reality it may just be a billing/tier setting.

Environment

• Claude Code version: 2.1.77
• Platform: macOS (Darwin 24.6.0)
• Auth: OAuth token, firstParty API provider
• CLAUDE_CODE_DISABLE_FAST_MODE is not set
• No managed settings file at /Library/Application Support/ClaudeCode/managed-settings.json

Expected Behavior

1. /usage should display usage data for personal subscription users
2. The fast mode message should say something like "Fast mode requires extra usage credits to be enabled" rather than "disabled by your organization" when on a personal plan

Debug Log Excerpts

2026-03-17T07:06:14.017Z [DEBUG] Fast mode unavailable: Fast mode has been disabled by your organization
2026-03-17T07:06:14.020Z [DEBUG] Broken symlink or missing file encountered for settings.json at path: /Library/Application Support/ClaudeCode/managed-settings.json

The "Fast mode unavailable" line repeats hundreds of times throughout the session.