Add share intent, relative dates, task count badge

Share intent receiver:
- ACTION_SEND text/plain intent filter in manifest
- Shared text pre-fills compose card via MainActivity → App →
  AppNavHost → MainScreen → MemoListScreen

Relative dates in task parser:
- "next monday" through "next sunday" (picks next occurrence)
- "next week" (7 days from today)
- "in N days" / "in N day" (arbitrary future offset)
- All cleaned from display text

Task count badge on pivot header:
- Small number next to "tasks" title showing overdue + due-today
- Uses accent color, only visible when count > 0

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>
Co-Authored-By: Claude Opus 4.6 (1M context)

composeApp/src/commonMain/kotlin/com/avinal/memos/App.kt

@@ -9,7 +9,7 @@ import com.avinal.memos.ui.theme.NikkiTheme
 import com.avinal.memos.util.LocalAppDependencies
 
 @Composable
-fun App() {
+fun App(sharedText: String? = null) {
     val deps = LocalAppDependencies.current
 
     setSingletonImageLoaderFactory { context ->
@@ -21,6 +21,6 @@ fun App() {
     }
 
     NikkiTheme {
-        AppNavHost(deps)
+        AppNavHost(deps, sharedText = sharedText)
     }
 }

composeApp/src/commonMain/kotlin/com/avinal/memos/parser/TaskParser.kt

@@ -16,7 +16,7 @@ object TaskParser {
     private val taskLineRegex = Regex("""^\s*- \[([ xX])]\s+(.*)$""")
 
     private val isoDateRegex = Regex("""\b(\d{4}-\d{2}-\d{2})\b""")
-    private val naturalDateRegex = Regex("""\b(today|tomorrow|yesterday)\b""", RegexOption.IGNORE_CASE)
+    private val naturalDateRegex = Regex("""\b(today|tomorrow|yesterday|next\s+(?:monday|tuesday|wednesday|thursday|friday|saturday|sunday)|in\s+\d+\s*days?|next\s+week)\b""", RegexOption.IGNORE_CASE)
 
     private val time12Regex = Regex("""\b(\d{1,2})(?::(\d{2}))?\s*(am|pm)\b""", RegexOption.IGNORE_CASE)
     private val time24Regex = Regex("""\b(\d{1,2}):(\d{2})\b""")
@@ -116,10 +116,23 @@ object TaskParser {
         }
         naturalDateRegex.find(text)?.let {
             val today = Clock.System.todayIn(TimeZone.currentSystemDefault())
-            return when (it.groupValues[1].lowercase()) {
-                "today" -> today
-                "tomorrow" -> today.plus(1, DateTimeUnit.DAY)
-                "yesterday" -> today.plus(-1, DateTimeUnit.DAY)
+            val matched = it.groupValues[1].lowercase().trim()
+            return when {
+                matched == "today" -> today
+                matched == "tomorrow" -> today.plus(1, DateTimeUnit.DAY)
+                matched == "yesterday" -> today.plus(-1, DateTimeUnit.DAY)
+                matched == "next week" -> today.plus(7, DateTimeUnit.DAY)
+                matched.startsWith("in ") -> {
+                    val days = Regex("""\d+""").find(matched)?.value?.toIntOrNull() ?: return null
+                    today.plus(days, DateTimeUnit.DAY)
+                }
+                matched.startsWith("next ") -> {
+                    val dayName = matched.removePrefix("next ").trim()
+                    val targetDow = dayOfWeekFromName(dayName) ?: return null
+                    val todayDow = today.dayOfWeek.ordinal
+                    val diff = (targetDow - todayDow + 7) % 7
+                    today.plus(if (diff == 0) 7 else diff, DateTimeUnit.DAY)
+                }
                 else -> null
             }
         }
@@ -286,6 +299,11 @@ object TaskParser {
         return warnings
     }
 
+    private fun dayOfWeekFromName(name: String): Int? = when (name) {
+        "monday" -> 0; "tuesday" -> 1; "wednesday" -> 2; "thursday" -> 3
+        "friday" -> 4; "saturday" -> 5; "sunday" -> 6; else -> null
+    }
+
     private fun cleanTaskText(text: String): String {
         var clean = text
         clean = priorityRegex.replace(clean, "")

composeApp/src/commonMain/kotlin/com/avinal/memos/ui/memos/MainScreen.kt

@@ -59,6 +59,7 @@ import com.avinal.memos.ui.theme.LocalAccentColor
 import kotlinx.coroutines.launch
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
+import kotlinx.datetime.todayIn
 import kotlinx.datetime.toLocalDateTime
 
 private val pivotTitles = listOf("explore", "memos", "tasks", "settings")
@@ -67,6 +68,7 @@ private const val START_PAGE = 1
 @Composable
 fun MainScreen(
     deps: AppDependencies,
+    sharedText: String? = null,
     onMemoClick: (String) -> Unit,
     onCreateMemo: () -> Unit,
     onLogout: () -> Unit,
@@ -74,6 +76,13 @@ fun MainScreen(
     val pagerState = rememberPagerState(initialPage = START_PAGE, pageCount = { pivotTitles.size })
     val scope = rememberCoroutineScope()
     val accent = LocalAccentColor.current
+
+    val allMemos by deps.memoRepository.observeMemos().collectAsState(initial = emptyList())
+    val urgentTaskCount = remember(allMemos) {
+        val today = kotlin.time.Clock.System.todayIn(TimeZone.currentSystemDefault())
+        allMemos.flatMap { memo -> com.avinal.memos.parser.TaskParser.extractTasks(memo.id, memo.content, memo.tags) }
+            .count { !it.isCompleted && it.dueDate != null && it.dueDate <= today }
+    }
     val density = LocalDensity.current
 
     var dateFilter by remember { mutableStateOf<String?>(null) }
@@ -129,19 +138,33 @@ fun MainScreen(
                 val distance = kotlin.math.abs(scrollFraction - index)
                 val alpha = (1f - distance * 0.5f).coerceIn(0.15f, 1f)
                 val isSelected = pagerState.currentPage == index
+                val titleColor = if (isSelected) accent.copy(alpha = alpha)
+                    else MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = alpha * 0.4f)
 
-                Text(
-                    text = title,
-                    fontSize = 42.sp,
-                    fontWeight = FontWeight.Light,
-                    color = if (isSelected) accent.copy(alpha = alpha)
-                    else MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = alpha * 0.4f),
-                    maxLines = 1,
+                Row(
                     modifier = Modifier
                         .offset { IntOffset(offsetPx, 0) }
                         .clickable { scope.launch { pagerState.animateScrollToPage(index) } }
                         .padding(vertical = 4.dp),
-                )
+                    verticalAlignment = Alignment.Bottom,
+                ) {
+                    Text(
+                        text = title,
+                        fontSize = 42.sp,
+                        fontWeight = FontWeight.Light,
+                        color = titleColor,
+                        maxLines = 1,
+                    )
+                    if (title == "tasks" && urgentTaskCount > 0) {
+                        Text(
+                            text = "$urgentTaskCount",
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.Medium,
+                            color = accent.copy(alpha = alpha),
+                            modifier = Modifier.padding(start = 4.dp, bottom = 8.dp),
+                        )
+                    }
+                }
             }
         }
 
@@ -180,6 +203,7 @@ fun MainScreen(
                         )
                         1 -> MemoListScreen(
                             deps = deps,
+                            sharedText = sharedText,
                             onMemoClick = onMemoClick,
                             onCreateMemo = onCreateMemo,
                             dateFilter = dateFilter,

composeApp/src/commonMain/kotlin/com/avinal/memos/ui/navigation/AppNavHost.kt

@@ -20,7 +20,7 @@ import com.avinal.memos.ui.memos.MemoEditorScreen
 private const val ANIM_DURATION = 300
 
 @Composable
-fun AppNavHost(deps: AppDependencies) {
+fun AppNavHost(deps: AppDependencies, sharedText: String? = null) {
     val navController = rememberNavController()
     val isLoggedIn by deps.authRepository.isLoggedIn.collectAsState(initial = false)
 
@@ -63,6 +63,7 @@ fun AppNavHost(deps: AppDependencies) {
         ) {
             MainScreen(
                 deps = deps,
+                sharedText = sharedText,
                 onMemoClick = { memoId -> navController.navigate(Route.MemoDetail(memoId)) },
                 onCreateMemo = { navController.navigate(Route.MemoEditor()) },
                 onLogout = {