Productionize WP Suite: auth, security hardening, sync, dashboard, PWA, email

Brings the Work Package Suite from a browser-local prototype to a
multi-tenant, SQL-backed deployment hardened for customer IP.

Auth & access control
- Local username/password login (bcrypt + JWT in an HttpOnly cookie),
  admin-managed users, per-project membership, and project-scoped API access.
- Admin console: change user roles, view the audit trail, manage settings.

Security hardening
- CSP / HSTS / X-Frame-Options / nosniff headers in nginx; Secure cookie via
  X-Forwarded-Proto; CSRF Origin check; attribute-safe output escaping.
- Login lockout, token_version session revocation, stronger password policy,
  fail-closed secret loading, encrypted (AES-256) database backups.

Persistence & schema
- SOPs and Work Packages are now DB-backed and shared across users, written
  through a durable client sync outbox that queues offline edits.
- Alembic migrations applied automatically on container start.

New capabilities
- Phase 2 dashboard (progress, gating, pagination, archive).
- Phase 3 PWA "Field View" with offline caching and auth fallback.
- WP owner assignment with OPTIONAL email notifications, OFF by default and
  toggled from the admin console. SMTP password is read only from the
  SMTP_PASSWORD env var (never stored); emails carry a WP number + deep link,
  never customer IP.

Also: IBM Carbon restyle, Help section, and DEPLOYMENT.md brought up to date.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/alembic.ini

@@ -0,0 +1,43 @@
+# Alembic configuration for the Work Package Suite.
+# The database URL is NOT hard-coded here — env.py pulls it from the same place
+# the app does (server/db.py: POSTGRES_* / DATABASE_URL / SQLite fallback), so
+# migrations always target the same database as the running app.
+[alembic]
+script_location = %(here)s/alembic
+prepend_sys_path = .
+# Use OS-native path separators on Windows dev machines.
+path_separator = os
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S