Fix wheel-photo squareness bug, native select popups, image-cycle crash

.bildbox.radbild lost to a same-specificity, later-declared .bildbox rule,
so the wheel photo stayed a full-width 4:3 box despite the earlier crop
fix - only which slice showed ever changed. Fixed with a compound selector
and moved "Montiert" to top-left to match the now-correctly-sized photo.

Native <select> popups had no color-scheme hint and rendered in the
browser's default light palette regardless of the app's dark theme -
this is what made "Modell" and other dropdowns flash bright white.

bildWeiter() (Mein Audi image-cycle tap) referenced a CSS class that was
never emitted (.platzhalter-datei vs. the real .platzhalter-aktion),
throwing and aborting before the page-dot indicator update - the photo
advanced but the dots never moved.

Merged the separate "Fahrzeugbilder" upload grid into "Bild der
Übersicht": pick a view from the existing dropdown, tap its preview to
upload/replace/delete - same generic popup plumbing, no new mechanism.
Removed the now-dead BILDER_UPLOAD_SLOTS/.bildgrid/.bildslot/.carfix.mini.

Back arrow changed from red to the neutral headline color, matching every
other navigation-color decision in this project.

Investigated but could not reproduce: user-reported "whole tab bar
disappears" when hiding labels. Traced the exact commit that added the
icon+label highlight and confirmed it's correctly scoped to :not(.ohne);
live DOM/computed-style testing across toggle, navigation, and both
mobile/desktop widths showed the tab bar staying visible throughout.
Left unchanged pending a repro from the user.

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

AGENTS.md

@@ -17,7 +17,13 @@ generic-receipt-parser gaps; a sixth round the same day fixed the map pins' real
 (the CI `poi-car`/`poi` icons are thin outline-only paths, only 13-40% filled — solved with a solid
 silhouette layer extracted from each icon's own outer contour, not a redraw), applied a batch of
 ~20 user-reported UI polish items against Apple's Human Interface Guidelines, some via a guided
-Q&A, and lowered the battery-voltage statistic's cutoff from 13.2V to 12.8V). This file is the entry point for every new agent
+Q&A, and lowered the battery-voltage statistic's cutoff from 13.2V to 12.8V; a seventh round the
+same day fixed a real CSS specificity bug that kept the wheel photo a wide 4:3 box instead of the
+intended 96x96 square, moved the "Montiert" pill to match, added `color-scheme` so native `<select>`
+popups stop rendering in the browser's default light palette against the dark app, root-caused and
+fixed a JS crash in the "Mein Audi" image-cycle click handler, merged the separate "Fahrzeugbilder"
+upload grid into "Bild der Übersicht" (pick a view, tap its photo to upload), and turned the back
+arrow from red to the neutral headline color — see section C). 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.
 
@@ -926,6 +932,63 @@ wraps the web app for iPhone; a PWA home-screen install is the accepted intermed
       Deployed to `audi_ha_test` (version `1786901000`); pin fix visually confirmed live (solid
       teardrop pin with white car glyph, clearly over the map's "Obergurgl" label text) and the
       tab-bar highlight confirmed covering both icon and "Übersicht" label.
+- [x] Seventh round the same day (2026-08-16) — more user-reported layout/interaction bugs:
+      (1) **Wheel photo (Sommerrad/Winterrad) was never actually a square, despite the fifth round's
+      crop-direction fix.** Root cause: `bildMitPlatzhalter()` puts the `radbild` class on *both* the
+      wrapping `.bildbox` div and the `<img>`; the old `.radbild{width:96px;height:96px;...}` rule and
+      `.bildbox{width:100%;aspect-ratio:4/3;...}` have equal specificity (one class each), and
+      `.bildbox` is declared later in the file, so it silently won — the box stayed a full-width 4:3
+      rectangle the whole time, `object-position:right center` just changed which slice of that wide
+      box showed. Fixed with a `.bildbox.radbild{width:96px;height:96px;aspect-ratio:1/1}` compound
+      selector (two classes, unambiguously higher specificity than plain `.bildbox`); `.radbild` alone
+      now only carries `object-position`. Verified live: `.bildbox.radbild` now measures exactly
+      96×96px.
+      (2) **"Montiert" moved from top-right to top-left**, per explicit request — this was the visible
+      symptom of (1): the pill was anchored top-right assuming it overlaid the (accidentally) full-
+      width photo; once the photo is a real 96px square on the left, top-left is where it actually
+      needs to sit to stay over the picture.
+      (3) **Native `<select>` popups now get a `color-scheme` hint.** The closed `<select>` box itself
+      was already themed correctly, but the *opened* native option list ignores app CSS and falls back
+      to the browser/OS default palette unless `color-scheme` says otherwise — this is what made
+      "Modell" and every other dropdown "flash" bright white against the dark app on open. Added
+      `color-scheme: dark` under `:host([data-theme="nacht"])` and `color-scheme: light` under
+      `:host([data-theme="tag"])` in `audi-dashboard-ios.css`.
+      (4) **Fixed a real JS crash in the "Mein Audi" image-cycle click handler.** `bildWeiter()` (fires
+      on tapping the hero photo) tried `box.querySelector(".platzhalter-datei").textContent = ...` —
+      that class was never emitted by `bildMitPlatzhalter()` (the actual class is `.platzhalter-
+      aktion`, and in gallery mode it deliberately shows a static "Foto hinzufügen" prompt, not a
+      filename). `querySelector` returned `null`, the assignment threw, and the exception aborted the
+      function *before* reaching the line that updates the `.dots` page indicator — so the photo
+      itself advanced (that line ran first) but the dots never moved, reading as "doesn't work."
+      Removed the dead line entirely; verified live that the `.dots` `on` class now correctly moves
+      with each click and no exception is thrown.
+      (5) **Merged the separate "Fahrzeugbilder" upload grid into "Bild der Übersicht"**, per explicit
+      request: pick a view from the existing "Ansicht" dropdown, then tap the (now also click-to-
+      upload) preview below it to upload/replace/delete that specific photo — reusing the same
+      generic `data-bildklick`/`bildMenuOffen` popup plumbing already used by the wheel-photo tiles,
+      not a new mechanism. `bildInfo()`'s existing winter-side-view special case (swaps in
+      `seitenansicht-winter.webp` while winter tires are marked mounted) means the winter variant
+      stays uploadable through the same control, gated by current tire season instead of a permanently
+      visible separate slot. The now-unused `BILDER_UPLOAD_SLOTS` constant and the `.bildgrid`/
+      `.bildslot`/`.bildslot-label`/`.carfix.mini` CSS were removed as dead code; a new
+      `.bildmenu.ansicht` positions the ersetzen/löschen popup anchored to the tile's *bottom* edge
+      (not a fixed top offset like the other two menu variants) since this preview's height varies
+      with the tile's own content instead of being a fixed small thumbnail.
+      (6) **Back arrow changed from red (`--ios-tint`) to the neutral headline color (`--fg`)** in
+      `audi-dashboard-ios.css`, matching every other navigation-color decision made this project (red
+      stays reserved for destructive actions per Apple's HIG).
+      Investigated but could not reproduce: user reported that hiding tab labels ("Beschriftung in der
+      Menüleiste" off) makes the *entire* tab bar disappear. Traced the full CSS cascade and the exact
+      commit that added the sixth round's icon+label highlight (`git show` on the relevant lines) —
+      the new rules are correctly scoped to `:not(.ohne)` and provably never touched the icon-only
+      path; live DOM/computed-style testing (toggle the switch, click the actual label, navigate away
+      and back, both mobile and desktop container widths) showed the tab bar staying visible, correctly
+      sized, and correctly classed in every case tried in the in-app Chromium browser. Left unchanged
+      pending a repro (screenshot or the exact device/browser) from the user, since no defect could be
+      located to fix.
+      Deployed to `audi_ha_test`; wheel-photo squareness, Montiert position, back-arrow color, and the
+      image-cycle dots all confirmed live via direct DOM/computed-style checks (no visual screenshot
+      tool available this session — see running note below).
 - [ ] 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`