499-Q Handler:
- Auto-filing toggle integration (same as 499-A)
- Playwright USAC E-File submission for quarterly form
- Revenue field filling (4 categories)
- Confirmation number capture + PDF save
- Client receives "data received" email immediately, then
"filed successfully" email with confirmation number after submission
- Falls back to admin todo if Playwright/session unavailable
Discontinuance Handler:
- Auto-emails deactivation letter to USAC (Form499@usac.org)
with DOCX attachment + entity summary in body
- CC to admin email for records
- Dev mode: redirects USAC email to admin instead
- Client confirmation email with process timeline
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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