refactor: Wormhole v4.0.0 — full modular architecture with hierarchical staff
BREAKING: Complete cog restructure from monolithic wormhole.py into modular architecture.
## Architecture
- models/permissions.py — Role IntEnum (MEMBER→OWNER), requires_role() decorator
- models/config.py — DEFAULT_NETWORK/DEFAULT_GLOBAL with 80+ config keys
- models/message_map.py — MessageMap class (extracted from _MessageMap)
- services/emoji.py — Foreign emoji resolution and relay
- ui/views.py — Reply jump button view
- ui/modals.py — Report modal
- core.py — Main Wormhole class, helpers, background loops, context menus
- commands/ — 13 command modules as mixin classes
- listeners/ — relay pipeline, edit/delete/reaction sync, typing/pin sync
## Staff System (new)
Per-network hierarchical roles replacing flat owner/staff:
Bot Owner (Red built-in) — global override
└─ Network Owner → Admin → Moderator → Helper → Member
Each role assigned per-network. Higher roles can assign lower.
Legacy staff_ids auto-migrated to ADMIN role.
## Enhanced Moderation
- Server-level ban/mute (not just user-level)
- Allowlist mode (only whitelisted servers can send)
- Mod edit and nuke (delete N messages by user)
- Anti-raid detector with auto-freeze
- Expanded automod: anti-zalgo, anti-emote-spam, anti-newline-spam
## Commands (100+)
network, settings, staff, moderation, filters, social, dm, mentions,
tos, reports, bridge, advanced (polls/afk/auto-responses/scheduled/
analytics/quiet-hours/colours/invites/announcements/blackout/portal),
debug (health/trace/testsend/relaydebug/backup/restore/version)
## Files
- 30 Python files, 5,274 lines total (was 4,782 in monolith)
- Original wormhole.py preserved for reference
- utils.py unchanged (all helpers reused)
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