feat(git): make recent-activity rows and the last-commit line clickable

- Recent-activity rows navigate to the issue/PR they represent (routeFor).
- The last-commit strip is now tappable: on the home it opens the Code
  screen; on the feed repo card it opens the repository.

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/Git.kt

@@ -846,7 +846,7 @@ private fun RenderGitRepositoryEvent(
             )
         }
 
-        RepoSnapshotDashboard(noteEvent, note, accountViewModel)
+        RepoSnapshotDashboard(noteEvent, note, accountViewModel, nav)
 
         if (topics.isNotEmpty()) {
             Spacer(modifier = HalfDoubleVertSpacer)
@@ -876,6 +876,7 @@ private fun RepoSnapshotDashboard(
     noteEvent: GitRepositoryEvent,
     note: Note,
     accountViewModel: AccountViewModel,
+    nav: INav,
 ) {
     val browser: GitRepositoryBrowserViewModel =
         viewModel(
@@ -900,8 +901,8 @@ private fun RepoSnapshotDashboard(
         Spacer(modifier = HalfDoubleVertSpacer)
         RepoLanguageBar(slices)
     }
-    snapshot.tipCommit?.let {
+    snapshot.tipCommit?.let { commit ->
         Spacer(modifier = HalfDoubleVertSpacer)
-        RepoLastCommit(it)
+        RepoLastCommit(commit) { nav.nav(Route.GitRepository(noteEvent.kind, noteEvent.pubKey, noteEvent.dTag())) }
     }
 }

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

@@ -21,6 +21,7 @@
 package com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo
 
 import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -53,6 +54,7 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.ui.navigation.routes.Route
+import com.vitorpamplona.amethyst.ui.navigation.routes.routeFor
 import com.vitorpamplona.amethyst.ui.note.ClickableUserPicture
 import com.vitorpamplona.amethyst.ui.note.ReactionsRow
 import com.vitorpamplona.amethyst.ui.note.elements.TimeAgo
@@ -382,13 +384,17 @@ fun computeLanguageBreakdown(files: List<String>): List<LanguageSlice> {
 // ---------------------------------------------------------------------------
 
 @Composable
-fun RepoLastCommit(commit: GitCommit) {
+fun RepoLastCommit(
+    commit: GitCommit,
+    onClick: (() -> Unit)? = null,
+) {
     Row(
         modifier =
             Modifier
                 .fillMaxWidth()
                 .clip(CardShape)
                 .background(MaterialTheme.colorScheme.surface)
+                .let { if (onClick != null) it.clickable(onClick = onClick) else it }
                 .padding(horizontal = 14.dp, vertical = 12.dp),
         verticalAlignment = Alignment.CenterVertically,
         horizontalArrangement = Arrangement.spacedBy(12.dp),
@@ -457,7 +463,11 @@ private fun ActivityRow(
 ) {
     val event = note.event ?: return
     Row(
-        modifier = Modifier.fillMaxWidth().padding(horizontal = 14.dp, vertical = 8.dp),
+        modifier =
+            Modifier
+                .fillMaxWidth()
+                .clickable { nav.nav { routeFor(note, accountViewModel.account) } }
+                .padding(horizontal = 14.dp, vertical = 8.dp),
         verticalAlignment = Alignment.CenterVertically,
         horizontalArrangement = Arrangement.spacedBy(10.dp),
     ) {

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

@@ -340,7 +340,9 @@ private fun GitRepositoryHome(
                 if (languageSlices.isNotEmpty()) {
                     RepoLanguageBar(languageSlices)
                 }
-                snapshot.tipCommit?.let { RepoLastCommit(it) }
+                snapshot.tipCommit?.let { commit ->
+                    RepoLastCommit(commit) { nav.nav(Route.GitRepositoryCode(note.address)) }
+                }
             }
 
             RepoNavCards(note, openIssueCount, openPullCount, nav)