chore: rename app from Solitaire Quest to Ferrous Solitaire

Updates all in-tree references:
- Android package: com.solitairequest.app → com.ferrousapp.solitaire
- APK name: solitaire-quest → ferrous-solitaire
- Data dir: solitaire_quest → ferrous_solitaire (across all 6 data modules + engine)
- Keyring service: solitaire_quest_server → ferrous_solitaire_server
- Android Keystore key: solitaire_quest_token_key → ferrous_solitaire_token_key
- Gitea repo: Rusty_Solitare → Ferrous-Solitaire (also fixes "Solitare" typo)
- Renamed pkg/solitaire-quest* → pkg/ferrous-solitaire*
- Updated ArgoCD, docker-compose, CI workflow, build script, all docs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/android-release.yml

@@ -10,9 +10,9 @@ env:
   NDK_VERSION: 30.0.14904198
   BUILD_TOOLS_VERSION: "36.1.0"
   PLATFORM: android-34
-  APK_OUT: target/release/apk/solitaire-quest.apk
+  APK_OUT: target/release/apk/ferrous-solitaire.apk
   GITEA_URL: https://git.aleshym.co
-  REPO: funman300/Rusty_Solitare
+  REPO: funman300/Ferrous-Solitaire
 
 jobs:
   build-apk:
@@ -106,7 +106,7 @@ jobs:
                  -d "{
                    \"tag_name\": \"$TAG\",
                    \"name\": \"$TAG\",
-                   \"body\": \"## Android release $TAG\n\n**Install / update with Obtainium** — add this source URL:\n\`\`\`\nhttps://git.aleshym.co/funman300/Rusty_Solitare\n\`\`\`\n\nOr download \`solitaire-quest.apk\` below and sideload it directly.\",
+                   \"body\": \"## Android release $TAG\n\n**Install / update with Obtainium** — add this source URL:\n\`\`\`\nhttps://git.aleshym.co/funman300/Ferrous-Solitaire\n\`\`\`\n\nOr download \`ferrous-solitaire.apk\` below and sideload it directly.\",
                    \"draft\": false,
                    \"prerelease\": false
                  }" \