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/pubspec.lock

@@ -409,6 +409,70 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      sha256: f6a7e5c4835bb4e3026a04793a4199ca2d14c739ec378fdfe23fc8075d0439f8
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.2"
+  url_launcher_android:
+    dependency: transitive
+    description:
+      name: url_launcher_android
+      sha256: b413d49b73867ac08dd2f9890efd3cc11f2a0e577618d50843440a1fb3776c32
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.32"
+  url_launcher_ios:
+    dependency: transitive
+    description:
+      name: url_launcher_ios
+      sha256: "580fe5dfb51671ae38191d316e027f6b76272b026370708c2d898799750a02b0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.4.1"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      sha256: d5e14138b3bc193a0f63c10a53c94b91d399df0512b1f29b94a043db7482384a
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.2"
+  url_launcher_macos:
+    dependency: transitive
+    description:
+      name: url_launcher_macos
+      sha256: "368adf46f71ad3c21b8f06614adb38346f193f3a59ba8fe9a2fd74133070ba18"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.5"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      sha256: "552f8a1e663569be95a8190206a38187b531910283c3e982193e4f2733f01029"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      sha256: "85c81589622fbc87c1c683aaea164d3604a7777495a79d91e39ffcdec39ddb34"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.3"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      sha256: "712c70ab1b99744ff066053cbe3e80c73332b38d46e5e945c98689b2e66fc15f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.5"
   vector_math:
     dependency: transitive
     description: