refactor(git): move code-browser ViewModel + syntax highlighter to commons

Relocates the two app-agnostic pieces of the NIP-34 code browser into commons
so the desktop front end can reuse them verbatim:

- GitRepositoryBrowserViewModel (+ GitBrowseState) → commons jvmAndroid
  nip34Git package. Pure StateFlow ViewModel over quartz's GitHttpClient;
  no Android/AccountViewModel/INav dependency.
- CodeHighlighter → commons commonMain nip34Git/ui. Pulls the Apache-2.0
  dev.snipme:highlights dependency into commons commonMain.

Amethyst composables now import both from commons. The screen-level
composables stay app-side, matching the commons convention that shared UI
never takes AccountViewModel/INav.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DpNmN8CvP6HnEsdTGAjVUr

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/GitDiffView.kt

@@ -60,7 +60,7 @@ import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbol
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code.CodeHighlighter
+import com.vitorpamplona.amethyst.commons.nip34Git.ui.CodeHighlighter
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.quartz.nip34Git.patch.CharSpan
 import com.vitorpamplona.quartz.nip34Git.patch.GitDiffFile

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/gitRepo/GitRepositoryScreen.kt

@@ -60,6 +60,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
+import com.vitorpamplona.amethyst.commons.nip34Git.GitRepositoryBrowserViewModel
 import com.vitorpamplona.amethyst.commons.ui.feeds.FeedState
 import com.vitorpamplona.amethyst.model.AddressableNote
 import com.vitorpamplona.amethyst.model.Note
@@ -77,7 +78,6 @@ import com.vitorpamplona.amethyst.ui.screen.RefresheableFeedView
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code.GitCodeTab
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code.GitReadmeTab
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code.GitRepositoryBrowserViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.dal.RepositoryIssuesFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.dal.RepositoryPatchesFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.datasource.RepositoryFilterAssemblerSubscription

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/gitRepo/code/GitCodeTab.kt

@@ -60,6 +60,8 @@ import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
+import com.vitorpamplona.amethyst.commons.nip34Git.GitBrowseState
+import com.vitorpamplona.amethyst.commons.nip34Git.GitRepositoryBrowserViewModel
 import com.vitorpamplona.amethyst.commons.ui.layouts.LocalDisappearingScaffoldPadding
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.ui.note.ArrowBackIcon

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/gitRepo/code/GitCommitLog.kt

@@ -57,6 +57,7 @@ import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
+import com.vitorpamplona.amethyst.commons.nip34Git.GitRepositoryBrowserViewModel
 import com.vitorpamplona.amethyst.ui.note.ArrowBackIcon
 import com.vitorpamplona.amethyst.ui.note.types.GitDiffView
 import com.vitorpamplona.amethyst.ui.stringRes

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/gitRepo/code/GitFileViewer.kt

@@ -60,6 +60,8 @@ import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.model.EmptyTagList
+import com.vitorpamplona.amethyst.commons.nip34Git.GitRepositoryBrowserViewModel
+import com.vitorpamplona.amethyst.commons.nip34Git.ui.CodeHighlighter
 import com.vitorpamplona.amethyst.ui.components.RichTextViewer
 import com.vitorpamplona.amethyst.ui.components.util.setText
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/gitRepo/code/GitReadmeTab.kt

@@ -39,6 +39,8 @@ import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.model.EmptyTagList
+import com.vitorpamplona.amethyst.commons.nip34Git.GitBrowseState
+import com.vitorpamplona.amethyst.commons.nip34Git.GitRepositoryBrowserViewModel
 import com.vitorpamplona.amethyst.commons.ui.layouts.LocalDisappearingScaffoldPadding
 import com.vitorpamplona.amethyst.ui.components.RichTextViewer
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav

commons/build.gradle.kts

@@ -122,6 +122,9 @@ kotlin {
 
                 // Compose Multiplatform Resources
                 implementation(libs.jetbrains.compose.components.resources)
+
+                // KMP syntax highlighter (Apache-2.0) for the git code browser.
+                implementation(libs.highlights)
             }
         }
 

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/nip34Git/ui/CodeHighlighter.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code
+package com.vitorpamplona.amethyst.commons.nip34Git.ui
 
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.AnnotatedString

commons/src/jvmAndroid/kotlin/com/vitorpamplona/amethyst/commons/nip34Git/GitRepositoryBrowserViewModel.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.code
+package com.vitorpamplona.amethyst.commons.nip34Git
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider