feat(kpi): show every month's result in the Resultat per månad pane (#2198)

* feat(kpi): show every month's result in the Resultat per månad pane

A user asked to see the sum for each month on Nyckeltal, not only the
latest bar. The pane now lists the exact net result per month in two
columns under the axis (negatives in terracotta, months after the last
active one muted), and labels every non-zero bar with its compact value
when the twelve labels fit side by side. When they would collide (a
decimal negative like "-3,4 tn" or six-figure months) the bars keep the
single latest label as before; the list always carries the numbers.

The fit rule lives in components/kpi/month-values.ts with a glyph-aware
width estimate so it is deterministic and unit-tested without a DOM.
No preference toggle: the numbers are the default the user asked for.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJUkdbACeRS93Eenr59D3H

* fix(kpi): address skeptic findings on the monthly result pane

- Never label a bar "-0": compact labels use signDisplay negative and
  stay blank under 5 ore, so an oresavrundning-only month shows nothing.
- Mute every month with no result movement, not only the trailing ones,
  so a mid-year start does not print leading no-data months full-strength.
- Measure the latest bar's label at the size it renders (10.5 vs 8) and
  test neighbours pairwise, so the fit rule guarantees what it claims.
- Let the bars pane span two grid rows so the first metric pane no longer
  stretches to fill the taller pane.
- Key the new list rows by position as well as label (18-month years).
- DECISIONS.md: no Anpassa toggle; storno asymmetry between the monthly
  and year-total paths left for a founder call.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJUkdbACeRS93Eenr59D3H

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

DECISIONS.md

@@ -1517,3 +1517,4 @@ One line per decision: `[YYYY-MM-DD] <decision>: <why>`. Appended by agents and
 [2026-09-02] Accounted Connect direction (founder decision after a fork was resold): the ledger stays AGPL with no licence change and no ee/ split; provider integration logic moves behind the connector (hosted app/api/connect/* today, a separate Connect service later) one upstream at a time on the existing connector keys, ledger and entitlement sync. Rejected: FSL/BSL relicensing (58 public forks keep the AGPL version; DCO-only contributions cannot be relicensed without consent) and closed first-party extensions alone (the code still ships to every self-hoster, and the provider extensions do not honour the Extension API boundary).
 [2026-09-02] Peppol connector proxy (#2177) is operation-shaped (lookup/submit/status/evidence/recipient/inbound), NOT a path passthrough like the bank proxy: Qvalia URLs embed Arcim's partner and account numbers, the account is shared by every hosted company and every instance so reads must be scoped to what the caller owns, and Qvalia's inbound "read" endpoint marks documents read for the whole account. Ownership is bound to (key, company_ref); participants a key may publish are recorded on the key at issuance (connector_keys.peppol_participants) because the hosted side cannot otherwise know which organisations an instance legitimately hosts. Inbound is served from the hosted archive, never by calling Qvalia on the instance's behalf.
 [2026-09-02] The connector wire contract is an MIT package (packages/connect-contract, @accounted/connect-contract) consumed in-repo from source through a tsconfig/vitest alias (#2179), and check:guards ratchets the set of files naming a provider API host (#2178): the open repo keeps the contract and the manual file paths, either side of the connection can be implemented outside it, and the grandfathered provider-host set may only shrink. Declined a NOT VALID + later VALIDATE pair for the ledger service CHECK: connector_connections has zero prod rows until keys are issued.
+[2026-09-02] Nyckeltal "Resultat per månad" shows the exact per-month figures as an always-on list under the bars (#2198), not behind an "Anpassa" toggle: a preference would touch the type, the PUT schema, the strict preferences-body validator, the dialog and its tests for a switch nobody turns off. Per-bar compact labels are conditional on a glyph-width fit rule and fall back to the single latest label, so they never overlap. Left alone: the monthly path counts only posted entries while the year-total path also counts reversed originals (pinned as intended in tests/pg/kpi-report-aggregates-rpc.pg.test.ts), so a same-year storno makes the sum of months differ from Nettoresultat; visible as numbers now, founder call whether to align the two.