The free-text backfill no longer has an insights cache step since the
readable cached-text column was dropped, so its summary carries no
insightsCachesMigrated count. The expected summaries follow.
Every write has gone to insights_cached_text_encrypted since 0411, and
the boot-time free-text backfill sealed the rows written before it.
Migration 0430 drops insights_cached_text and the backfill index that
served it. A host that skipped the intervening releases loses only a
cache of model output; the next warm writes a fresh, sealed payload.
The cipher module now reads and writes the sealed column only, the
backfill job loses its insights step, and consent withdrawal, the wipe
plan, the backup plan and the session projection follow the schema.
Backups never carried the column, and restore ignores unknown account
settings; a round-trip test now proves an old backup naming the field
still restores cleanly. The access guard pins exact counts for where
the sealed name may appear. Fixtures, the demo seed and the demo
migration script seed the sealed column instead of plaintext.
users.insights_cached_text held the model's briefing, readings and
recommendations about the account in the clear. Migration 0411 adds
insights_cached_text_encrypted (AES-256-GCM, binary layout, purpose-bound
label) and a partial discovery index; the free-text encryption backfill
seals the existing rows one at a time, fail-closed, carrying updatedAt and
guarded on the value it read. Every reader, writer and clear goes through
cached-text-cipher.ts, and a guard keeps the column names there. The
column joins the encrypted-column registry and the key-rotation script,
stays out of backups as operational, and is reset by the data wipe.
The free-text backfill no longer seals home, period or day locations, so its
summary has no counts for them, and a stored day has no readable lat left to
be null.
Fetch the Open-Meteo air-quality feed (CAMS, domains=auto) with the weather:
17 hourly variables folded into local days by fixed rules (means and maxima
only with 18 of 24 hours, ozone as the highest 8-hour running mean, UV only
with the midday hours), a value the feed did not cover stored as null, never
as zero. Requests are cut into 90-day chunks, newest first, and chunks before
mid 2022 ask for the eight pollutant and index variables only. An air-quality
failure never costs the weather row; the day stays unfetched and the nightly
gap fill (up to 90 days per account, newest first) asks for it again.
Every Open-Meteo request asks an instance-wide budget kept in Postgres first
(500 a minute, 4000 an hour, 8000 a day, weighted by the hosted pricing
rule). A refused request is not sent and the run ends as done with
budget_blocked. OPENMETEO_AIR_QUALITY_URL and ENVIRONMENT_AIR_QUALITY_DISABLED
are honoured; the account switch lives on PATCH /api/environment/preferences.
The home, each dated location period and each stored day keep their coarse
location sealed as one value under healthlog/environment-location/v1. The
writers write the sealed value only, the readers open it and fall back to the
readable columns for rows the free-text encryption backfill has not reached,
and the backfill now seals all three and clears the readable columns. The
backup carries the location readable in a portable file and sealed in a
disaster-recovery file; a restore seals either under the receiving key.
Three correlation channels join the environment family (PM2.5, the ozone
8-hour high, the day's highest pollen count), read through the averaged
same-day window and left empty while air quality is off. The Coach and MCP
gain get_environment: module-gated, clamped to the lookback limit, no
coordinate or place name anywhere, with provenance and the attribution
lines. The settings section gets the switch, the coverage and the newest
day's values; the dashboard shows a quiet chip on a day with high pollen,
a warm night or very poor air. Copernicus and Open-Meteo are credited next
to the values.
The title encryption backfill moved each Coach conversation's title into
ciphertext with a plain Prisma update, which stamps updatedAt. The Coach
panel orders and groups conversations by that column, so threads untouched
for months showed up under Today. The memory summary refresh did the same
in the background.
Storage-only rewrites now carry the row's own updatedAt and match on it, so
a turn that lands meanwhile wins and the row is retried on the next pass:
conversation titles, practitioner contacts, measurement and mood notes
(where updatedAt is the sync cursor), inventory notes, and the mood-note
script. The summary refresh writes through raw SQL. A guard freezes both
rules: every backfill write on a model with @updatedAt names the column or
is listed with the reason the stamp is wanted, and every conversation
write outside the person's own actions keeps it.
The encryption backfill now also removes the two copies of a practitioner's
contact details that outlived the sealing. An appointment reminder's copy of
the address is cleared, since the reminder resolves it from the practitioner
when it fires. An address-book edit's audit row written before the sealing
kept the old phone number and address in its previous values; those values
leave the row and the changed fields stay named. Rows of a deleted account,
which no per-account job reaches, are scrubbed by the discovery pass itself.
A route whose readable geometry is a JSON null rather than SQL NULL had
nothing to seal but matched discovery every night. The pass now sets it to
SQL NULL so it drops out.
The GPS track of an outdoor workout was stored readable, and its first and
last points are usually the person's front door. The phone number and address
in the address book of doctors and practices were readable too, while the
note beside them was already encrypted.
Migration 0361 adds workout_routes.geometry_encrypted (the geometry loses
its NOT NULL) and practitioners.phone_encrypted / location_encrypted, plus
partial indexes on the backfill's discovery predicates. A track is sealed as
one binary AES-256-GCM value bound to its purpose; the contact fields use the
same Bytes codec as the note. The practitioner's name, practice and specialty
stay readable, because the picker searches and sorts on them.
Every writer stores ciphertext only: workout batch ingest, practitioner
create and edit, and both restore formats. Readers prefer the ciphertext and
fall back to the old column for rows not yet migrated: the workout detail
(map, splits, GPX), the activity insight's climb figure, the practitioner
DTO behind the address book, visits and vaccinations. The wire shape does not
change. An edit's audit row now names a changed phone number or address
without recording either value.
free-text-encryption-backfill covers the three columns in the same pass,
finding a route through its workout. All three are registered for key
rotation (registry, CLI script, and the in-app rotation). A disaster-recovery
backup carries the contact fields as ciphertext only; a portable export
carries them readable. Workout routes are still not part of a backup, as
before. The old columns are marked for removal in a later release.
The title of a Coach conversation is the first 80 characters of the
opening message, and the note on a custom-metric reading is free text;
both were stored readable while every other note was encrypted.
Migration 0357 adds coach_conversations.title_encrypted and
custom_metric_entries.note_encrypted (the title loses its NOT NULL) plus
partial indexes on the backfill's discovery predicate. Every writer now
stores ciphertext only: conversation create, proactive nudge, reminder
surfacing, rename, entry create and edit, and both restore formats.
Readers prefer the ciphertext and fall back to the old column for rows
not yet migrated; a ciphertext that does not open throws instead of
falling back. The history title search decrypts in memory, since SQL can
no longer match the title.
free-text-encryption-backfill is a boot-time, idempotent pg-boss job
(staggered past the startup storm, daily discovery tick) that seals each
remaining readable value and nulls it in one transaction per row. A pass
that sees a row twice stops with an error instead of looping.
Both columns are registered for key rotation (registry, CLI script, and
the in-app rotation that walks the registry). A disaster-recovery backup
carries ciphertext only, sealing a not-yet-migrated row on the way out;
a portable export carries readable text. The old columns are marked for
removal in a later release.
Marc-André Bombeck