feat(brand): rename product to Recl∆Im (Reclaim) across app, bundle, docs

Recl∆Im — the F∆I product line for Pflicht-basierte
Wirkungsanalyse und Reform-Vorschlags-Pipelines. Replaces the
working title 'Law-Heatmap', which described the demo view
rather than the platform. Heatmap, Norms list, Hub view,
Methodik are now four panes of the same Recl∆Im app.

Renames in this commit:

  Flutter package      lawheatmap_app   -> reclaim_app
  macOS bundle id      ai.flemming.lawheatmapApp -> ai.flemming.reclaim
  macOS PRODUCT_NAME   lawheatmap_app   -> reclaim_app
  Theme tokens         LawHeatmapColors/Space/Radius/Typography/Theme
                       -> Reclaim*
  Surface card         LawHeatmapCard   -> ReclaimCard
  Top-level widget     LawHeatmapApp    -> ReclaimApp
  Theme files          lawheatmap_theme.dart/lawheatmap_tokens.dart
                       -> reclaim_theme.dart/reclaim_tokens.dart
  Widget file          lawheatmap_card.dart -> reclaim_card.dart
  Build script         build-macos.sh paths and headline string
  Docs                 MACHBARKEITSSTUDIE.md, METHODIK.md, RUN.md,
                       app/README.md, flow YAML
  UI strings           'F∆I Law-Heatmap' / 'Law-Heatmap'
                       -> 'Recl∆Im' / 'Recl∆Im (F∆I)' for vendor-
                       prefixed contexts

flutter analyze: clean. flutter test: 2/2 passing.

The local working directory stays fai_lawheatmap/ for now —
the dir is referenced by the .claude project metadata; renaming
it would break session continuity for no real gain. The Forgejo
repo was renamed via API in the same change-set (fai/lawheatmap
-> fai/reclaim), with the legacy slug serving a redirect
courtesy of Forgejo's built-in rename handling.

Signed-off-by: flemming-it <sf@flemming.it>

app/build-macos.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Robust macOS build for the F∆I Law-Heatmap client.
+# Robust macOS build for the Recl∆Im (F∆I) client.
 #
 # macOS xattrs (especially `com.apple.provenance` on files that
 # touched iCloud or were downloaded by curl) make Xcode's
@@ -30,7 +30,7 @@ flutter build macos --debug \
     echo "  flutter exited $rc — continuing to xattr+resign step in case the binary linked"
   }
 
-APP=build/macos/Build/Products/Debug/lawheatmap_app.app
+APP=build/macos/Build/Products/Debug/reclaim_app.app
 if [ ! -d "$APP" ]; then
   echo "ERROR: $APP does not exist — flutter build failed before linking"
   exit 1
@@ -45,4 +45,4 @@ echo "[4/4] ad-hoc resign"
 echo
 echo "done. Launch with:"
 echo "  open $APP"
-echo "  # or directly: $APP/Contents/MacOS/lawheatmap_app"
+echo "  # or directly: $APP/Contents/MacOS/reclaim_app"