SPEC v0.27: D-128 S-12 line chart of a category or account over the range

New AC-14.11; §13.3 S-12 row with its own range and granularity, the line
chart and the empty-range text; §13.4 strings.csv 569 rows. design-spec
§3.10 SpendLineChart and LineLegend, AnalyticsFilterBar row 2 optional,
S-12 layout for a category or account over the range. strings.csv gains
the seven analytics keys as built in 12e2508. HANDOFF: D-128 and the
keyboard fix landed, web-client programme holds D-129+ and v0.28+.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B
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Living document, rewritten in place (never a second copy). A new orchestrator session reads CLAUDE.md, then this.
## 1. Where things stand
- State as of 2026-10-21. `main` at `3778f5f` (pull-to-refresh on Home and account detail, D-127), after `7521c01` (`infra/npm/kvitt.conf`, D-126) and `2acfc34` (SPEC v0.25, D-126); `origin/main` (Gitea) at `7521c01`, so `3778f5f` is not pushed yet; plus the SPEC v0.26 docs commit from `agent-ptr-docs` once it lands. A parallel feature holds D-128 and SPEC v0.27. Landed since SPEC v0.25: `3778f5f` (below).
- State as of 2026-10-21. `main` at `12e2508` (S-12 line chart, D-128), after `b0a90da` (SPEC v0.26, D-127), `05ec3f3` (editor keyboard fix) and `3778f5f` (pull-to-refresh, D-127); `origin/main` (Gitea) at `12e2508`; plus the SPEC v0.27 docs commit from `agent-catline-docs` once it lands. The web-client programme started 2026-10-21: its architect agent holds D-129 onward and SPEC v0.28 onward. Landed since SPEC v0.26: `05ec3f3`, `12e2508` (below).
- **Kvitt host name** (owner decision 2026-10-19): `kvitt.suorra.duckdns.org`, a subdomain of the owner's DuckDNS family domain `suorra.duckdns.org`; NPM issues its Let's Encrypt certificate; `KVITT_PUBLIC_HOST=kvitt.suorra.duckdns.org`, so `KVITT_PUBLIC_URL=https://kvitt.suorra.duckdns.org` (port 443, D-124). It is in `infra/pi/.env.example` and `infra/pi/.env` (`KVITT_PUBLIC_HOST`) and `android/local.properties` (`kvitt.publicHost`, git-ignored). SPEC §10.1 and §10.5.1 point here.
- **NPM proxy host** for `kvitt.suorra.duckdns.org` is Online with a Let's Encrypt certificate (owner, 2026-10-19). The router needs no new rule: external TCP 443 already forwards to the Home Assistant Pi (owner confirmed, D-124).
- **Images**: `gitea.lan/jacobh2/kvitt-server` and `gitea.lan/jacobh2/kvitt-backup`, tags `v1.0.0` (run 69) and `v1.0.1` (the sparse-checkout push; the tag the Pi uses), plus `latest`; the packages are public, so the Pi pulls without `docker login`. Gitea Actions on the owner's Pi runner (act_runner 0.6.1, Alpine job container): the first failures were an empty secret (the user-level secret was misnamed on the owner's side, fixed 2026-10-19; a user-level secret of the repository owner reaches the repository); run 69 succeeded: login ok, `v1.0.0`, `kvitt-backup` 5 min 20 s, `kvitt-server` 2 h 42 min on the Pi 3 (first build, `CARGO_BUILD_JOBS=1`; later runs reuse the builder's cargo cache); the tag push works with the `write:package` token. SPEC §10.3.
@@ -12,6 +12,9 @@ Living document, rewritten in place (never a second copy). A new orchestrator se
- **First release APK**: `apk/kvitt-123.apk` (10.0 MB, git-ignored by `*.apk`) handed to the owner from the main checkout for sideloading on both phones (both paired, 2026-10-21); it was built before any `kvitt.appKey` existed, so it sends no `X-Kvitt-App`: it works only until the gate is pasted (on the home Wi-Fi it keeps working afterwards). The phones need a keyed APK before the gate goes in (§3).
- History rewrite and first push, 2026-10-18 (owner authorised): superseded PNG versions were dropped from the whole history (no LFS), the current goldens and UX mock-ups restored in `18c527f`; pack 45 MiB; `origin/main` pushed at `18c527f`. A bundle of the pre-rewrite history (`kvitt-pre-rewrite.bundle`) is kept outside the repository, in the orchestrator's scratchpad. Every commit from M2b on got a new hash; the oxipng pass (`7c453d8` before the rewrite) no longer exists as a commit (it only touched PNGs). SPEC, `docs/decisions.md`, this file and `prompts/README.md` cite the rewritten hashes since v0.18 (`7c453d8` stays as the oxipng pass's name; `docs/validation/ac-coverage.md` keeps its pre-rewrite hashes verbatim); since v0.19 the plans cite rewritten hashes too (eight pre-rewrite hashes in `PLAN-*.md` replaced by the commit with the same subject); `docs/spikes/pi-image-arm64.md` and the READMEs had none stale. For any other old hash, find the commit by its subject with `git log --oneline --grep`.
- History (rewritten hashes): `5e1be38` plans and prompts, `c885aba` M2c-dev, `76ee957` SPEC v0.3, `c277ee3` M2b, `06f48ef` M2a, `6dce4c7` SPEC v0.4, `7869ec4` M3, `8f0e156` M5, `853c038` SPEC v0.5, `15056dc` M4, `d9dd584` SPEC v0.6, `50339ae` M9, `86e08a1` SPEC v0.7, `aa765bb` M12a, `d39eb2c` SPEC v0.8, `b09f322` M12c, `6eaccec` M12b, `0006bd7` UX Kalas categories and tokens, `6da6b1b` UX sprint U2, `e676812` SPEC v0.9, `557af7e` M12d, `7730a31` M6, `9ee67d4` SPEC v0.10, `a41f240` and `6453932` app wiring before M8, `1ea752c` M7a, `ea7d494` M7e, `7380e50` M7d, `0e1d99d` M7b, `0b140aa` M7c, `c4ab35f` M7f, `b24c8b5` M6b, `f4dc10c` SPEC v0.11, `3dda414` M7g, `cb832a7` and `3d9eea8` M8, `6159e18` SPEC v0.12, `8c60715` M12e, `b7b7483` M12e launcher icon, `51d6ff8` SPEC v0.13, `a312758` Vico removal, `f56dcbe` FCM `fid`, `3e6c337` Pi image arm64 check, `e2dba84` SPEC v0.14, `328c466` M8b, `6eb3f85` `FcmMessageBody.fid`, `bfde12c` SPEC v0.15, `75b549f` M8c goldens, `a0c25b0` M8c licences row, `c30a49e` R8 release build, `bacbd18` M8d, `bfc3acb` SPEC v0.16, `2476667` M2c-pi bundle, `a59abeb` M8e, `b4d9467` Dockerfile `CARGO_BUILD_JOBS`, `956908a` M8f, `1328afe` chips cleanup, `400eac9` SPEC v0.17, `18c527f` goldens restored after the rewrite; then `2fac1ec` to `e70fe0d` infra overhaul, `8660b7f` server gap pass, `7fb86f5` infra security, `dc7a296` to `a0259ab` M12f, `8103dae` to `b985ce9` server overhaul, `48fe119` SPEC v0.18, `e4e6e5d` to `c582363` Android overhaul, `3ef2c15` SPEC v0.19, `96e4cbd` APK download rate limit (D-119), `481889a` SPEC v0.20, `f1abb0d` `cargo audit` in the server gate, `4f69ae0` Gitea login in the run line, `d05f13a` Pi stack behind NPM, `62f5279` and `9231a1d` infra README for NPM (D-120), `d090c6c` Android host property (D-121), `4bcff2c` SPEC v0.21, `dd07ca4` temporary workflow diagnostic step, `4a4e45f` S-22's release server and `4b1ae0c` `publish-apk.sh` host (D-122), `c9abd24` and `e381e37` server host defaults and OpenAPI `{host}` (D-123), `ac17b41` `install.sh` step number, `cce3e4e` SPEC v0.22, `a86ad24` server and contracts on port 443, `4852803` bundle on port 443 (D-124), `038c603` Android on port 443 and the pinned-root template, `ad35231` portless Android fixtures, `b1f4c10` SPEC v0.23, `3820f9c` sparse-checkout workflow, `200c99f` `.env` without informational keys, `6e5981d` self-contained Pi compose project (D-125), `28fa71b` compose deploy hint in the workflow and `infra/build-images.sh`.
- Landed since SPEC v0.26 (recorded in v0.27):
- S-12 line chart (`12e2508`, D-128, owner request 2026-10-21): S-12 opened from a category or account breakdown row has its own period chip and Month/Week toggle (starting from S-11's, changing S-12 only; measure and group-by fixed from S-11), the header total, a "Utgifter över tid" card with `SpendLineChart` (one point per bucket, empty as zero), the dashed range average with its amount, a trailing 3-bucket moving average, `LineLegend` and a caption comparing the latest whole bucket with the average ("<Bucket>: N % över snittet" / "under snittet" / "på snittet"), then the rows; a bar drill-down is unchanged. New AC-14.11; seven `strings.csv` keys (569 rows); no model, domain, fakes, server or contract change. Goldens `s12_category_groceries`, `s12_category_week`, `s12_category_empty_range`, `line_chart`, `line_chart_variants` new, `s12_category`, `s12_account`, `s12_long` re-recorded; 977 Android tests.
- Editor keyboard fix (`05ec3f3`, no decision): S-19, S-15 and S-6 editor bodies apply the scaffold padding, consume it and add `imePadding()`, so the keyboard no longer covers a focused field.
- Landed since SPEC v0.25 (recorded in v0.26):
- Pull-to-refresh (`3778f5f`, D-127, owner request 2026-10-21): S-4 and S-5 run `SyncRepository.syncNow()` (the S-16 "Synka nu" call) on a pull; the indicator stays until the sync returns, success or failure (failure only in the sync pill); offline the pull ends at once. `KvittPullToRefresh` in `:core:design` (`component/Refresh.kt`): `PullToRefreshBox` with a `primary-container` disc, the `sync` icon turning with the pull and popping at the threshold (`KvittMotion.spatialFast()`, `GestureThresholdActivate` haptic), a `primary` arc that turns indeterminate; `ContainedLoadingIndicator` swaps in when the pinned Material 3 ships it. TalkBack "Synkar…" (`sync_syncing`, reused). Goldens `S-4-home-refreshing`, `S-5-account-refreshing`; 959 Android tests.
- Landed since SPEC v0.24 (recorded in v0.25, plus `infra/npm/kvitt.conf` `7521c01`, no decision of its own):
@@ -46,21 +49,21 @@ Living document, rewritten in place (never a second copy). A new orchestrator se
- Validation reports (SPEC §11.4): `docs/validation/ac-coverage.md` (taken at `956908a`, `ed1b130` before the rewrite): 270 rows, 260 Done, 5 Partial, 1 Missing, 4 device-only; feature complete in code, not yet against §4's acceptance rule; its S-16 and S-22 mismatches are fixed by M12f. `docs/validation/security-review.md` (taken at `18c527f`): Critical 0, High 1, Medium 3, Low 10, Info 8; L-6 kept (D-116), L-7 fixed (D-116), L-1, L-2, L-5, L-9, M-2 fixed (D-117), L-8 fixed (`e70fe0d`); H-1 (`725901c`, D-115), M-3 (`baa5806`) and L-4 (`b985ce9`, D-114) fixed by the server overhaul; L-10 left as the spec says, decision pending (§4). Owner answers of 2026-10-19: M-1 no (backups stay unencrypted, rclone keeps the `drive` scope; accepted risk in SPEC §8.1 and §8.7), L-3 accepted and fixed (`96e4cbd`, D-119), the 16 MP and 512-character limits (D-114) confirmed; M-2's remaining question (the Home Assistant SSH key form) is moot with the NPM rework (D-120) and closed; D-120 also moves L-1 and the headers to NPM, makes L-2 moot, reverses the L-8 fix and replaces I-5's check with a conntrack check (dated notes in the review, SPEC §11.4). H-1 is fixed (`725901c`).
- Server overhaul (landed on `main` `8103dae` to `b985ce9`): shared helpers and one test harness, clippy pedantic wins; H-1 rate limiter (`725901c`, D-115), pictures at most 16 MP and 64 MB decoded (`baa5806`, D-114), `fcm_token` at most 512 characters (`b985ce9`, D-114); shared row inserts, invite creation and CLI helpers, `tests/common/` harness, synchronous `tasks::start`; 268 server tests; all crates at their latest versions. Recorded in SPEC v0.18.
- In flight:
- This docs pass (`agent-ptr-docs`: SPEC v0.26, D-127, design-spec S-4, S-5, §2.11, §3.1, §3.6, this file).
- A parallel feature with D-128 and SPEC v0.27 (orchestrator's brief).
- This docs pass (`agent-catline-docs`: SPEC v0.27, D-128, AC-14.11, §13.3 S-12, §13.4, design-spec §3.10 and S-12, `docs/ux/strings.csv`, this file).
- The web-client programme (started 2026-10-21; architect agent, holds D-129 onward and SPEC v0.28 onward).
- Earlier outcomes (details in SPEC §11.2, §11.3 and `docs/decisions.md`): M8 end-to-end test passed on the owner's S26 against the dev server on 2026-10-18 (pairing, scripted partner, offline expense synced, push by `fid` delivered); M8b to M8f UI fixes; the M2c-pi bundle `infra/pi/` (D-103 to D-106, owner checklist in `infra/README.md` "Pi: what the owner does"); release builds R8-shrunk and signed (alias `kvitt`, RSA 4096, v2).
- Compatibility: an APK from M12e on cannot pair or list devices against a pre-M12e server, so the server is rebuilt and redeployed before a new APK is installed (SPEC §14.8). The dev server already runs schema 3.
- Remote: `origin` on Gitea, SSH key works; pushed at `7521c01`. The Gitea secret `kvitt_cicd` (a user-level secret of `jacobh2`, renamed by the owner 2026-10-19) works; the Drive token is `infra/secrets/rclone.conf` (`[gdrive]`; folder id in `.env` as `RCLONE_FOLDER_ID`). Unused on the Mac since D-120: `infra/secrets/ha_ssh_key` and `ha_ssh_key.pub` (git-ignored; may be deleted).
- Both gates exist: Android `tools/gradle-serial.sh check` (from `android/`), server `cargo fmt --check && cargo clippy --all-targets -- -D warnings && cargo audit && cargo test` (from `server/`, `cargo audit` since `f1abb0d`). Both green on `main` as far as reported (Android 959 tests at `3778f5f`; server 276 tests at `c9abd24`).
- Both gates exist: Android `tools/gradle-serial.sh check` (from `android/`), server `cargo fmt --check && cargo clippy --all-targets -- -D warnings && cargo audit && cargo test` (from `server/`, `cargo audit` since `f1abb0d`). Both green on `main` as far as reported (Android 977 tests at `12e2508`; server 276 tests at `c9abd24`).
- Importer: the dry run of 2026-10-18 reconciled on both real files (Vardag 1746 rows, Hemma 37 rows, 0 unmapped). The production import on the Kvitt Pi is done (owner, 2026-10-21). The CSV files stay in `export/` (git-ignored).
- Development stack (M2c-dev): running on the Mac at `http://192.168.1.210:8080`, database at schema 3, data kept; backups `infra/dev/backups/kvitt-20261018T093143Z.sqlite.gz` and `kvitt-20261018T130443Z.sqlite.gz` (git-ignored). On this Podman setup run `infra/dev/up.sh --down`, then `infra/dev/up.sh`, to swap in a rebuilt image. Since `7fb86f5` `up.sh` copies only `fcm-service-account.json` into `infra/dev/secrets/` (git-ignored). The owner's phone is paired with it; a scripted partner exists (tokens held by the orchestrator outside the repo). Firebase project `kvitt-1337` with apps `se.hagstedt.kvitt` and `se.hagstedt.kvitt.debug`; service account `kvitt-fcm`.
- Installed on the owner's phone (SM-S942B): the debug app `se.hagstedt.kvitt.debug`, paired against the dev server; the release app `se.hagstedt.kvitt`, rebuilt with the host `kvitt.suorra.duckdns.org` and no port (D-124) and installed 2026-10-19; paired against the Kvitt Pi 2026-10-21. The partner's phone is paired too.
- Disk: the MacBook had about 72 GB free during the v0.20 docs pass (2026-10-19); run `tools/clean-builds.sh` when it drops under about 5 GB.
## 2. Open work (one line each, with who owns it: agent or owner)
- Land `agent-ptr-docs` (orchestrator): SPEC v0.26, D-127, design-spec, HANDOFF. Push `3778f5f` and it to `origin` (neither touches `server/**`, `infra/backup/**` or `.gitea/**`, so no workflow run).
- Land `agent-catline-docs` (orchestrator): SPEC v0.27, D-128, design-spec, `strings.csv`, HANDOFF; run the Android gate on landing (`strings.csv` changed). Push it to `origin` (it touches no `server/**`, `infra/backup/**` or `.gitea/**`, so no workflow run).
- Closed by `28fa71b`: the `/opt/kvitt` leftovers in `.gitea/workflows/build-images.yaml` and `infra/build-images.sh` (compose deploy hint, `docker image inspect`). Still stale in the workflow header (agent, next infra pass): "NOT YET RUN" and "First-build duration on the Pi: unknown" (now 2 h 42 min).
- Pushed: through `7521c01` (SPEC v0.25, D-126, `infra/npm/kvitt.conf`).
- Pushed: through `12e2508` (S-12 line chart, D-128).
- Closed by `2acfc34` (`agent-gate-docs`): `infra/README.md`'s stale `CARGO_BUILD_JOBS` text and its "Owner decisions (open)" (now answered).
- `infra/backup/Dockerfile`: stale comment "on the Pi the container runs as uid 10001" (since D-125 the owner's uid); left as is, because editing it triggers a 5-minute image build (agent, with the next change there).
- Historical `:8443` and `icehack.asuscomm.com` mentions in `docs/ux/` and `docs/validation/` are left as the record of their time (no action unless the owner wants them rewritten).
@@ -74,7 +77,7 @@ Living document, rewritten in place (never a second copy). A new orchestrator se
- Unverified risk: the workflow pushes a git tag; whether that re-triggers the path-filtered workflow is not known (watch the next runs).
- `PLAN-M2c-pi.md` is superseded where it names Caddy, cert-sync, scripts or `/opt/kvitt` (note at its top, D-120 and D-125); SPEC §10 and `infra/README.md` are current. `PLAN-M11.md` has a note that `/opt/kvitt/import` is now `~/kvitt/import`.
- Plans (SPEC §11.2 v0.24), in dependency order; prompt `prompts/<id>.md`:
- M1, M2a, M2b, M2c-dev, M3, M4, M5, M6, M6b, M7a to M7g, M8 (phone test passed), M8b to M8f, M9, M12a to M12f, U1, U2, R8 release build, M2c-pi bundle with its NPM rework and the self-contained compose project (D-125), server gap pass, infra overhaul, infra security, the server overhaul, the Android overhaul, the APK download rate limit, `cargo audit`, the Android host property and its follow-ups (D-122), the server host defaults (D-123), port 443 (D-124): landed.
- M1, M2a, M2b, M2c-dev, M3, M4, M5, M6, M6b, M7a to M7g, M8 (phone test passed), M8b to M8f, M9, M12a to M12f, U1, U2, R8 release build, M2c-pi bundle with its NPM rework and the self-contained compose project (D-125), server gap pass, infra overhaul, infra security, the server overhaul, the Android overhaul, the APK download rate limit, `cargo audit`, the Android host property and its follow-ups (D-122), the server host defaults (D-123), port 443 (D-124), pull-to-refresh (D-127), the editor keyboard fix, the S-12 line chart (D-128): landed.
- Next: the app key and gate if not yet done (D-126, §3); M10 First release (keystore per §10.6, D-101; the reports `first-release.md` and `restore-drill.md`). Done 2026-10-21: release pairing of both phones against the Kvitt Pi and M11 Import history (SPEC §10.8 "Production run").
## 3. HUMAN steps pending (relay in chat)
@@ -92,9 +95,9 @@ Done 2026-10-21: the Pi install (stack running, `v1.0.1`, both containers health
- Nothing.
## 6. Numbering
- Decisions: D-001 to D-127 used, except D-008 and D-009 (never used); D-128 reserved for the parallel feature. Next free: **D-129**.
- Spec version: v0.26 written; v0.27 reserved for the parallel feature; next **v0.28**.
- Server schema version **3** (migration 0003); next **4**. Room schema version **1** (`android/data/schemas/se.hagstedt.kvitt.data.db.KvittDatabase/1.json`); next **2**. Both unchanged by v0.26.
- Decisions: D-001 to D-128 used, except D-008 and D-009 (never used). Next free: **D-129**, taken by the web-client architect agent (it holds D-129 onward).
- Spec version: v0.27 written. Next **v0.28**, taken by the web-client architect agent (it holds v0.28 onward).
- Server schema version **3** (migration 0003); next **4**. Room schema version **1** (`android/data/schemas/se.hagstedt.kvitt.data.db.KvittDatabase/1.json`); next **2**. Both unchanged by v0.27.
- Sync protocol **1**, push payload **1**.
## 7. How the work is run