The M6 placeholder becomes a plan: a Stalwart mailbox for every user at
their handle with the webmail password (SQL directory over users.password_hash,
master-user login, no password copying), added as a permanent account; hosting
options (NAS / NAS + relay / VPS); app passwords for 2FA users; ways to stop
storing mail twice; phases, acceptance criteria and the open decisions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Implements SPEC v1.5 §6.2.1–6.2.3 so Gmail (and Yahoo/iCloud/Outlook-personal)
onboard via a provider app password on the existing plain-password sync path —
no OAuth, no new sync code. Gmail was oauth2-only with OAuth unimplemented, so it
was previously un-addable.
Backend:
- presets.yaml: each preset declares an ordered `auth_strategy`; Gmail becomes
`auth: password` + `[app_password, oauth2]`. App-password providers ship a
data-driven `help:` block (deep_link, app_name_hint, i18n step keys, docs_url).
- discovery/types: CandidateConfig carries `auth_strategy` + `HelpBlock`; presets
load them and autoconfig candidates derive a default from the detected auth.
- schemas/api: CandidateOut exposes auth_strategy + help; DiscoverResponse adds
`google_oauth_enabled`.
- config: GOOGLE_OAUTH_ENABLED flag (default false) gates the OAuth fallback.
Frontend:
- ProviderCredentialPanel (wizard step 1.5): deep-link popup (user gesture),
rendered steps, single paste field that strips whitespace, instant verify
(auto POST /accounts/test at 16 chars → Connected ✓ / mapped error), and the
auth_failed recovery branch with a gated "Sign in with Google instead" button.
- AccountWizard routes app-password providers to the panel, then a details step.
- i18n keys (en) for the panel + provider steps.
Honors the §6.2.2 prohibitions: no page automation, no real-password capture,
no scraping — deep-link + guide + paste + test only. Adds the v1.5 spec.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01U72FZiF1W1pb8XxyWBTREA