release: floret-kit 0.1.0

Finalize the 0.1.0 CHANGELOG entry (first tagged release). Consumed from
source via git submodule; tagging gives apps a stable, traceable pin.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -10,6 +10,8 @@ are no binary releases; "version" tracks the shared `version` in the root build
 
 ## [Unreleased]
 
+## [0.1.0] - 2026-07-07
+
 ### Added
 
 - **`core-time`** (JVM library) — pure-Kotlin date/time helpers, no Android and
@@ -18,6 +20,8 @@ are no binary releases; "version" tracks the shared `version` in the root build
   - `Instant.formatDate()` / `formatTime()` / `formatDateTime()` — locale- and
     zone-aware display formatting over `kotlin.time.Instant`.
   - `TimeBridge` — `Long` epoch-millis ↔ `Instant`, for content-provider I/O.
+  - `LocalDate.isoWeekNumber()` — ISO-8601 week-of-week-based-year, the
+    calendar-week number for week/month grids (one scheme, shared).
 - **`core-crash`** (Android library) — privacy-respecting, on-device crash
   capture and reporting. Writes an allowlist-only report (app/Android/device
   version, locale, time, stack trace — nothing else) to private storage and
@@ -28,8 +32,11 @@ are no binary releases; "version" tracks the shared `version` in the root build
   own thin themed `CrashReportActivity`.
 - **`identity`** (Android library) — the family's Material 3 Expressive theme
   factory `FloretExpressiveTheme(lightScheme, darkScheme, …)` (dynamic colour on
-  API 31+, system light/dark fallback, the standard motion scheme) plus
+  API 31+, system light/dark fallback, the standard motion scheme) plus the
-  `rememberNavSlideSpec()`. Each app passes its own seed-derived colour schemes
+  shared motion helpers — `rememberNavSlideSpec()`, the content transitions,
+  `Modifier.predictiveBack()` and `Modifier.animateContentSizeMotion()` (eases a
+  block's own height changes, e.g. a text field wrapping to a new line), each
+  reduced-motion-aware. Each app passes its own seed-derived colour schemes
   and typography — the mechanics are shared, the look is not.
 - **`components`** (Android library) — the shared Compose component vocabulary:
   - `GroupedSurface` / `GroupedRow` + `Position` / `positionOf` — the canonical
@@ -41,7 +48,9 @@ are no binary releases; "version" tracks the shared `version` in the root build
     `largeTopBar = false` for a pinned single-line bar (the picker variant).
   - `FullScreenPicker` / `OptionPicker` — the full-screen single-select picker,
     now over a pinned single-line bar (a picker is a short list, so no tall
-    collapsing header to scroll past).
+    collapsing header to scroll past). `FullScreenPicker` takes an optional
+    `actions` slot (app-bar trailing items) for pickers that carry a commit or
+    extra action — a custom-value **Add**/**OK**, a **Reset**.
   - `ReorderableColumn` — dependency-free drag-to-reorder for the short, fixed
     grouped-card Settings lists; pairs with `GroupedRow(gapBelow = false)`, which
     hands the column uniform control of row spacing.

components/src/main/kotlin/de/jeanlucmakiola/floret/components/OptionPicker.kt

@@ -2,6 +2,7 @@ package de.jeanlucmakiola.floret.components
 
 import android.view.WindowManager
 import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.RowScope
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.Check
 import androidx.compose.material3.Icon
@@ -25,6 +26,7 @@ fun FullScreenPicker(
     title: String,
     onDismiss: () -> Unit,
     predictiveBack: Boolean = false,
+    actions: @Composable RowScope.() -> Unit = {},
     content: @Composable ColumnScope.() -> Unit,
 ) {
     Dialog(
@@ -48,6 +50,7 @@ fun FullScreenPicker(
             onBack = onDismiss,
             largeTopBar = false,
             predictiveBack = predictiveBack,
+            actions = actions,
             content = content,
         )
     }

core-time/src/main/kotlin/de/jeanlucmakiola/floret/time/IsoWeek.kt

@@ -0,0 +1,16 @@
+package de.jeanlucmakiola.floret.time
+
+import java.time.LocalDate
+import java.time.temporal.IsoFields
+
+/**
+ * ISO-8601 week-of-week-based-year (1..53) for [this] date: weeks start on
+ * Monday and week 1 is the one containing the year's first Thursday. This is the
+ * calendar-week number shown in week/month grids.
+ *
+ * Centralised here so every surface agrees on one scheme — "week number" has
+ * several incompatible definitions (ISO vs. locale-first-day vs. US), and the
+ * ISO year a date belongs to can differ from its calendar year around New Year
+ * (e.g. 2018-12-31 is week 1 of 2019; 2021-01-01 is week 53 of 2020).
+ */
+fun LocalDate.isoWeekNumber(): Int = get(IsoFields.WEEK_OF_WEEK_BASED_YEAR)

core-time/src/test/kotlin/de/jeanlucmakiola/floret/time/IsoWeekTest.kt

@@ -0,0 +1,37 @@
+package de.jeanlucmakiola.floret.time
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+import java.time.LocalDate
+
+class IsoWeekTest {
+
+    @Test
+    fun `first Thursday's week is week 1`() {
+        // 2026-01-01 is a Thursday → ISO week 1.
+        assertThat(LocalDate.of(2026, 1, 1).isoWeekNumber()).isEqualTo(1)
+    }
+
+    @Test
+    fun `mid-year week`() {
+        assertThat(LocalDate.of(2026, 6, 15).isoWeekNumber()).isEqualTo(25)
+    }
+
+    @Test
+    fun `late-December days can roll into week 1 of the next ISO year`() {
+        // 2018-12-31 (Mon) belongs to ISO week 1 of 2019.
+        assertThat(LocalDate.of(2018, 12, 31).isoWeekNumber()).isEqualTo(1)
+    }
+
+    @Test
+    fun `early-January days can belong to the last week of the previous ISO year`() {
+        // 2021-01-01 (Fri) belongs to ISO week 53 of 2020.
+        assertThat(LocalDate.of(2021, 1, 1).isoWeekNumber()).isEqualTo(53)
+    }
+
+    @Test
+    fun `a 53-week year reports week 53`() {
+        // 2020-12-31 (Thu) is ISO week 53.
+        assertThat(LocalDate.of(2020, 12, 31).isoWeekNumber()).isEqualTo(53)
+    }
+}

identity/src/main/kotlin/de/jeanlucmakiola/floret/identity/Motion.kt

@@ -3,9 +3,12 @@ package de.jeanlucmakiola.floret.identity
 import android.provider.Settings
 import androidx.activity.BackEventCompat
 import androidx.activity.compose.PredictiveBackHandler
+import androidx.compose.animation.animateContentSize
 import androidx.compose.animation.core.Animatable
 import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -14,6 +17,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
 import kotlin.coroutines.cancellation.CancellationException
 
@@ -36,6 +40,21 @@ fun rememberReduceMotion(): Boolean {
     }
 }
 
+/**
+ * Animates a composable's own size changes with the family's spatial motion, so
+ * a block that grows or shrinks — a text field wrapping to a new line, a value
+ * swapped for a longer one — eases into its new height instead of jumping. Wraps
+ * Compose's [androidx.compose.animation.animateContentSize] onto the active M3
+ * Expressive motion scheme; under reduced motion the new size snaps in.
+ *
+ * Apply it high in the modifier chain of the element whose height changes.
+ */
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
+@Composable
+fun Modifier.animateContentSizeMotion(reduceMotion: Boolean = rememberReduceMotion()): Modifier =
+    if (reduceMotion) this
+    else animateContentSize(animationSpec = MaterialTheme.motionScheme.fastSpatialSpec<IntSize>())
+
 /**
  * The standard Android predictive-back transform for a full-screen surface: as
  * the back gesture is dragged, the surface scales toward ~90%, shifts toward the