mAi 7a359989a9 feat(db): t-paliad-218 — gap-tolerant migration runner with applied-set tracker
Replaces the golang-migrate single-counter tracker with a hand-rolled
runner over embed.FS that tracks applied state as a set in
paliad.applied_migrations (version PK, name, applied_at, checksum).

Closes the parallel-merge skip-hole the 2026-05-20 mig-103 incident
exposed (m/paliad#44): a migration whose version is missing from
applied_migrations runs on the next deploy regardless of which higher
versions are already applied. Gaps are first-class.

Slice 1 of the design at docs/design-migration-runner-applied-set-2026-05-20.md.
All eight design decisions m-picked = inventor recommendation.

Runner contract:
- Ensure paliad schema → pg_advisory_lock(hash('paliad.applied_migrations'))
  → CREATE TABLE IF NOT EXISTS applied_migrations.
- bootstrapFromLegacyTracker: if applied_migrations is empty and the legacy
  paliad.paliad_schema_migrations row is present and clean, INSERT rows
  1..N for every on-disk version with checksum=NULL via ON CONFLICT DO
  NOTHING. Hard-fail if legacy tracker is dirty (operator must recover).
- scanEmbeddedMigrations: hard-fail on two .up.sql files sharing a version
  prefix — the failure mode the post-mortem exposed.
- checkNameAgreement: hard-fail on rename-after-apply mismatch (disk name
  for an already-applied version != DB name).
- applyOne: SQL body + INSERT(version, name, now(), sha256(file_bytes))
  in one transaction. All-or-nothing per migration.

Checksums populated on apply for future drift detection; rows backfilled
from the legacy tracker carry NULL (we can't fabricate a hash for what
golang-migrate applied historically). Verify-on-deploy intentionally
deferred to a focused follow-up — single if-block flip when m wants it.

Up-only runner. .down.sql files stay in embed.FS as reference; manual
roll-back path is psql + DELETE FROM paliad.applied_migrations WHERE
version=N. Zero call sites for migrate.Down in the codebase today.

Drops github.com/golang-migrate/migrate/v4 from go.mod (no other
importers; verified via grep).

Tests:
- internal/db/migrate_test.go: TestMigrations_DryRun walks pending =
  on_disk \\ applied (read from paliad.applied_migrations, missing-table
  → empty set), runs each in BEGIN/ROLLBACK against the scratch DB.
- cmd/server/main_smoke_test.go: TestBootSmoke asserts the applied set
  equals the on-disk set exactly (not just max-version-match) — catches
  the skip class the post-mortem documented. Dirty-flag check removed
  (rows are committed or absent, not 'dirty').
- All 45 service-test call sites of db.ApplyMigrations work unchanged
  (same signature, same fresh-DB behavior).

Follow-up: mig 108_drop_legacy_trackers (DROP paliad.paliad_schema_migrations
and public.paliad_schema_migrations) after one or two deploys of burn-in
on this slice.
2026-05-20 12:59:16 +02:00

paliad

Paliad — all-in-one patent practice platform for HLC (formerly Hogan Lovells). Knowledge tools and Aktenverwaltung behind one sidebar.

  • Aktenverwaltung: Akten (matters), Fristen (deadlines), Termine (appointments) with CalDAV sync, Parteien, Dashboard. Office-scoped visibility with explicit collaborators.
  • Knowledge tools: Prozesskostenrechner (DE / UPC / EPA), Fristenrechner, Gebührentabellen, Patentglossar, Gerichtsverzeichnis, Checklisten, Link Hub, Downloads.

Domain: paliad.de (legacy: patholo.de, patholo.msbls.de). Repo: m/paliad on mgit.msbls.de.

Stack

  • Frontend: Bun + custom JSX/TSX renderer (no React), per-page client TS bundles, HTML-first forms
  • Backend: Go (net/http), sqlx for DB access
  • Migrations: golang-migrate/migrate/v4 with SQL files embedded via embed.FS; applied at server startup before the HTTP listener binds
  • Database: youpc Supabase Postgres, paliad schema. Office-scoped RLS (paliad.can_see_akte(akte_id)) — see docs/design-kanzlai-integration.md §2
  • Auth: Supabase password (cookie session, @hoganlovells.com / @hlc.* email gate)
  • CalDAV: hand-rolled iCal + minimal WebDAV client in internal/services/caldav_*.go; AES-GCM at rest for stored passwords
  • Hosting: Dokploy compose Zx147ycurfYagKRl_Zzyo on mlake

Database migrations

Migrations live in internal/db/migrations/ as NNN_description.up.sql + .down.sql pairs. They are embedded into the Go binary via embed.FS and applied automatically at server startup (before the HTTP listener binds) when DATABASE_URL is set.

The migration tracker is paliad.paliad_schema_migrations (not the default public.schema_migrations). This avoids a collision with other apps on the shared youpc Supabase instance — see the memory episode "paliad migration bootstrap collision with shared Postgres" for the incident that drove the change.

Current migrations (as of April 2026):

001_paliad_schema        schema + extensions
002_users                paliad.users (office, role, practice_group)
003_reference_tables     proceeding_types, deadline_rules, holidays
004_akten                paliad.akten with visibility columns
005_akten_children       parteien, fristen, termine, dokumente, akten_events, notizen
006_visibility           paliad.can_see_akte() function
007_rls_policies         RLS on every paliad table
008_seed_proceeding_types
009_seed_deadline_rules  32 UPC + 4 ZPO rules
010_seed_holidays        DE federal + UPC judicial vacations
011_feedback_tables      link_suggestions, checklisten_feedback, gerichte_feedback
012_fristenrechner_rules DB-backed rule set for /tools/fristenrechner
013_user_caldav_config   per-user CalDAV (encrypted) + sync log
014_checklist_instances  persisted checklist instances linkable to Akten

Add a new migration:

internal/db/migrations/015_<description>.up.sql
internal/db/migrations/015_<description>.down.sql

The down file is required and must reverse the up cleanly (verified by adding a one-off down test before merge).

To run migrations against a local Postgres:

docker run -d --name paliad-pg -e POSTGRES_PASSWORD=test -p 5432:5432 postgres:16-alpine
# bootstrap a mock auth schema (auth.users + auth.uid()) — required because
# the migrations reference Supabase-provided objects:
psql postgres://postgres:test@localhost:5432/postgres -f internal/db/devtools/mock_supabase_auth.sql
DATABASE_URL='postgres://postgres:test@localhost:5432/postgres?sslmode=disable' \
SUPABASE_URL=stub SUPABASE_ANON_KEY=stub \
go run ./cmd/server

Environment

Variable Required Purpose
PORT no (default 8080) HTTP listen port
SUPABASE_URL yes Supabase project URL (auth)
SUPABASE_ANON_KEY yes Supabase anon key (auth)
DATABASE_URL for Aktenverwaltung Direct Postgres conn for migrations + Akten/Fristen/Termine services. Knowledge-platform endpoints (Kostenrechner, Glossar, Links, Gebührentabellen, Checklisten, Gerichte, Downloads) don't use the pool and work without it. Aktenverwaltung endpoints return 503 if unset.
CALDAV_ENCRYPTION_KEY for CalDAV sync 32-byte AES-256 key, base64-encoded. Encrypts CalDAV passwords at rest (AES-GCM). Server fails fast on malformed key; if unset, CalDAV is silently disabled (/api/caldav-config returns 501). Generate with openssl rand -base64 32.
GITEA_TOKEN optional Gitea API token for the private file proxy (Downloads)
ANTHROPIC_API_KEY not used today Reserved for Phase H (AI Frist-Extraktion). Currently deferred — do not set.

Development

make build       # compile backend + frontend
make test        # run Go tests + frontend tests
go build ./...   # backend only
go vet ./...     # static checks
go test ./...    # Go tests
bun run build    # frontend only (produces frontend/dist/)

Project layout:

cmd/server/           # main entry point
internal/db/          # sqlx pool + embedded migrations
internal/services/    # AkteService, FristService, TerminService, CalDAV, ...
internal/handlers/    # HTTP handlers (pages + API)
internal/calc/        # Kostenrechner / Fristenrechner logic
frontend/             # Bun + TSX source; static HTML output to frontend/dist/
docs/                 # design docs + this roadmap

Deploy

Push to main → Gitea webhook → Dokploy auto-deploy on mlake.

Project status (April 2026)

Phases AG, I and J of the KanzlAI integration are shipped: schema, services, Akten, Fristen, Termine + CalDAV, Dashboard, Notizen service + UI (commit 5a9f8e5, 2026-04-17), and instanceable Checklisten (migration 014). Phase H (AI Frist extraction) is deferred pending a reversal of the "no Anthropic API" decision; the Dokumente tab on Akten detail is hidden until that lands. KanzlAI infra retirement (Dokploy shutdown, kanzlai schema drop, Gitea archive) is still pending.

See docs/feature-roadmap.md for the full backlog and docs/design-kanzlai-integration.md for the integration design.

Description
patholo.de — Patent knowledge sharing platform for HL colleagues
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