Fahrt-Formular: Ankunftszeit statt Dauer, Art gross, neutrale Pille

Fuenf gemeldete Punkte plus ein Theme-Bug beim Nachpruefen:

- "Dauer" ist kein Eingabefeld mehr - stattdessen Ankunftszeit, die Dauer
  wird aus Start/Ankunft berechnet und live angezeigt (fahrtZeitraum()/
  dauerText()), inklusive Fahrten ueber Mitternacht.
- Art-Werte werden grossgeschrieben angezeigt (Privat/Arbeitsweg), der
  gespeicherte Wert bleibt klein (artText()-Helfer).
- Arbeitsweg-Pille ist nicht mehr rot - sieht jetzt aus wie Privat.
- "tippen zum Umschalten" unter der Pille entfernt.
- Bild-Platzhalter (Einstellungen) war im Tag-Theme unsichtbar: --tile wird
  dort vom iOS-Overlay auf reines Weiss gesetzt, identisch mit Canvas/
  Kacheln. Auf --ios-fill umgestellt, in beiden Themes sichtbar grau.

Co-Authored-By: Claude Opus 5 <[email protected]>

AGENTS.md

@@ -38,7 +38,11 @@ route — see section C; a twelfth round the same day removed `HECKKLAPPENSCHLOS
 half-cut-off image placeholder, gave the Inspektion its own "voraussichtlich am …" forecast, made
 trips fully editable (new `audi_dashboard_fahrt_aktualisieren`, "Neue Fahrt" now offers every field
 the detail page shows), aligned the page title with the tiles on phone width, and closed two
-dead-ends in the bootstrap retry loop behind the reported hanging "Lädt …" screen).
+dead-ends in the bootstrap retry loop behind the reported hanging "Lädt …" screen; a thirteenth
+round the same day replaced the trip form's editable "Dauer" with Start-/Ankunftszeit (duration is
+now computed, not entered), capitalized the Art labels shown to the user, dropped the red styling
+and hint text from the Arbeitsweg pill, and fixed a daylight-mode-only regression from round twelve
+where the image placeholder's grey background had turned invisible-white).
 This file is the entry point for every new agent
 session: what this repo is, what is finished, what is missing, and how to work here. Detail lives in
 the linked documents — this file points, it does not duplicate.
@@ -1278,6 +1282,46 @@ wraps the web app for iPhone; a PWA home-screen install is the accepted intermed
       war jedes Mal binnen ~2s da) - die Sackgassen sind im Code belegt, dass sie *die* Ursache
       beim Nutzer waren, ist damit aber nicht bewiesen. Tritt es erneut auf: Browser-Konsole
       erfragen, bevor weiter geraten wird.
+- [x] Thirteenth round (2026-08-17, same day) — five more user-reported items on the trip form and
+      one theme bug found while verifying it:
+      (1) **"Dauer" replaced by "Ankunftszeit"; duration is no longer editable.** `fahrtFelder()`
+      now has Startzeit + Ankunftszeit inputs and a plain (non-input) duration display next to
+      them, computed by `fahrtZeitraum()`/`dauerText()` and kept live via a new
+      `data-fahrtzeitfeld` input handler (same "patch the one node, don't call render()" pattern
+      the existing `data-tankpreisfeld` handler uses, for the same reason: a full re-render would
+      steal focus from the field being typed in). An arrival time not later than the start time is
+      treated as crossing midnight (`+1 Tag`), matching how `_fahrt_beenden()` already handles a
+      real overnight trip. `fahrtFormularWerte()` derives `ts_start`/`ts_end` from the same
+      calculation - the backend never sees a separate duration field, so it can't disagree with
+      the times. Verified live: 09:00→10:45 shows "1 Std. 45 Min.", 23:30→00:15 shows "45 Min."
+      (crossed midnight correctly), and editing an existing trip's arrival time on the Einzelfahrt
+      page persisted the recalculated `duration_s` (7200s for a 10:00→12:00 edit, checked in
+      `fahrten.jsonl`).
+      (2) **Art values now display capitalized** ("Privat"/"Arbeitsweg") wherever shown to the user
+      - the trip-edit `<select>`, the trip-list row, and the Einzelfahrt pill - via a new
+      `artText()` helper; the stored value stays lowercase (`"privat"`/`"arbeitsweg"`), since it's
+      compared in several places (the pill, the "Arbeitsweg" statistic, the CSV export) and already
+      exists that way in every trip recorded so far. The CSV export itself was deliberately left
+      showing the raw value - a data file, not UI copy.
+      (3) **Arbeitsweg pill no longer red.** `.pill.work` (`color:var(--red)` / a translucent red
+      fill in the iOS overlay) is gone from both stylesheets along with the now-unused `work` class
+      on the button; the pill uses the same neutral styling regardless of Art, matching the request
+      that Arbeitsweg should look like Privat, not draw attention to itself.
+      (4) **"tippen zum Umschalten" hint removed** from under the Einzelfahrt pill, per explicit
+      request - the pill is still clickable, just without the caption.
+      (5) **Found while re-verifying the placeholder fix from round twelve: it broke daylight mode.**
+      `.bildbox.bild-fehlt .platzhalter{background:var(--tile)}` (added round twelve) reads fine in
+      Nacht theme, where `--tile` is a faint white overlay on a near-black canvas - but the iOS
+      overlay's Tag-theme block redefines `--tile:#FFFFFF`, identical to the canvas/most tiles
+      around it, so the placeholder box became invisible in daylight mode (measured live:
+      `background-color: rgb(255,255,255)` on both the placeholder and its surroundings). Switched
+      to `--ios-fill` (`rgba(120,120,128,.16)` in Tag theme, `.24` in Nacht) - the same token
+      `.feld select`/`.aktion` already use to mark "this is a surface", visibly grey in both themes.
+      Verified live in Tag theme: `background-color: rgba(120,120,128,.16)`, clearly a distinct box
+      against the white canvas (see screenshot taken during verification).
+      All five deployed to `audi_ha_test` (version `1787009000`) and synced to `installationspaket/`;
+      console showed only the pre-existing service-worker/404 noise from the missing vehicle photos,
+      nothing new.
 - [ ] Fix remaining documentation drift (statistics claim, README gaps, obsolete TODO comment) —
       text-only changes; INSTALL.md's WLAN/TommiG1 drift and stale variable names were fixed
       2026-08-12 (see section B); `DESIGN_REVIEW_2026-08-13.md` and `REVIEW_main_2026-08-13.md`