feat: adapter le thème Material3 à la palette visuelle Bonsai

Remplace les couleurs dynamiques Android 12+ et le schéma Material3
par défaut par la palette extraite du webapp Bonsai (bleu #2563eb,
fond #f9fafb, surface blanche, contours gris). Ajoute la typographie
complète (13 styles) et renomme les libellés "Planify" en "BonsaiTask".

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

app/src/main/java/com/planify/mobile/ui/MainScreen.kt

@@ -81,14 +81,14 @@ fun MainScreen(viewModel: DrawerViewModel = hiltViewModel()) {
     )
     val title = drawerTitles[currentRoute]
         ?: projects.find { "project/${it.id}" == currentRoute }?.name
-        ?: "Planify"
+        ?: "BonsaiTask"
 
     ModalNavigationDrawer(
         drawerState = drawerState,
         drawerContent = {
             ModalDrawerSheet {
                 Text(
-                    text = "Planify",
+                    text = "BonsaiTask",
                     fontWeight = FontWeight.Bold,
                     modifier = Modifier.padding(horizontal = 16.dp, vertical = 20.dp),
                 )

app/src/main/java/com/planify/mobile/ui/theme/Theme.kt

@@ -1,21 +1,104 @@
 package com.planify.mobile.ui.theme
 
-import android.os.Build
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.darkColorScheme
-import androidx.compose.material3.dynamicDarkColorScheme
-import androidx.compose.material3.dynamicLightColorScheme
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
-import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.graphics.Color
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.planify.mobile.data.preferences.ThemeMode
 
-private val LightColorScheme = lightColorScheme()
-private val DarkColorScheme = darkColorScheme()
+// Bonsai design tokens — extracted from the webapp CSS palette
+private val Blue600 = Color(0xFF2563EB)
+private val Blue700 = Color(0xFF1D4ED8)
+private val Blue800 = Color(0xFF1E3A8A)
+private val Blue100 = Color(0xFFDBEAFE)
+private val Blue50  = Color(0xFFEFF6FF)
+private val Blue300 = Color(0xFF93C5FD)
+private val Blue400 = Color(0xFF60A5FA)
+
+private val Gray50  = Color(0xFFF9FAFB)
+private val Gray100 = Color(0xFFF3F4F6)
+private val Gray200 = Color(0xFFE5E7EB)
+private val Gray300 = Color(0xFFD1D5DB)
+private val Gray400 = Color(0xFF9CA3AF)
+private val Gray500 = Color(0xFF6B7280)
+private val Gray600 = Color(0xFF4B5563)
+private val Gray700 = Color(0xFF374151)
+private val Gray800 = Color(0xFF1F2937)
+private val Gray900 = Color(0xFF111827)
+
+private val Green800 = Color(0xFF276749)
+private val Green600 = Color(0xFF2F855A)
+private val Green200 = Color(0xFFD1FAE5)
+private val Green900 = Color(0xFF14532D)
+
+private val Red600  = Color(0xFFDC2626)
+private val Red100  = Color(0xFFFEE2E2)
+private val Red900  = Color(0xFF7F1D1D)
+
+private val BonsaiLightColorScheme = lightColorScheme(
+    primary              = Blue600,
+    onPrimary            = Color.White,
+    primaryContainer     = Blue100,
+    onPrimaryContainer   = Blue800,
+    secondary            = Blue700,
+    onSecondary          = Color.White,
+    secondaryContainer   = Blue50,
+    onSecondaryContainer = Blue700,
+    tertiary             = Green800,
+    onTertiary           = Color.White,
+    tertiaryContainer    = Green200,
+    onTertiaryContainer  = Green900,
+    error                = Red600,
+    onError              = Color.White,
+    errorContainer       = Red100,
+    onErrorContainer     = Red900,
+    background           = Gray50,
+    onBackground         = Gray900,
+    surface              = Color.White,
+    onSurface            = Gray900,
+    surfaceVariant       = Gray100,
+    onSurfaceVariant     = Gray700,
+    outline              = Gray200,
+    outlineVariant       = Gray300,
+    inverseSurface       = Gray800,
+    inverseOnSurface     = Gray50,
+    inversePrimary       = Blue300,
+)
+
+private val BonsaiDarkColorScheme = darkColorScheme(
+    primary              = Blue300,
+    onPrimary            = Blue800,
+    primaryContainer     = Blue700,
+    onPrimaryContainer   = Blue100,
+    secondary            = Blue400,
+    onSecondary          = Blue800,
+    secondaryContainer   = Blue800,
+    onSecondaryContainer = Blue100,
+    tertiary             = Green200,
+    onTertiary           = Green900,
+    tertiaryContainer    = Green600,
+    onTertiaryContainer  = Green200,
+    error                = Color(0xFFF87171),
+    onError              = Red900,
+    errorContainer       = Color(0xFF991B1B),
+    onErrorContainer     = Color(0xFFFECACA),
+    background           = Gray900,
+    onBackground         = Gray50,
+    surface              = Gray800,
+    onSurface            = Gray50,
+    surfaceVariant       = Gray700,
+    onSurfaceVariant     = Gray300,
+    outline              = Gray600,
+    outlineVariant       = Gray700,
+    inverseSurface       = Gray50,
+    inverseOnSurface     = Gray900,
+    inversePrimary       = Blue600,
+)
 
 @Composable
 fun PlanifyTheme(
@@ -30,17 +113,8 @@ fun PlanifyTheme(
         ThemeMode.SYSTEM -> systemDark
     }
 
-    val colorScheme = when {
-        Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
-            val context = LocalContext.current
-            if (isDark) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
-        }
-        isDark -> DarkColorScheme
-        else -> LightColorScheme
-    }
-
     MaterialTheme(
-        colorScheme = colorScheme,
+        colorScheme = if (isDark) BonsaiDarkColorScheme else BonsaiLightColorScheme,
         typography = Typography,
         content = content,
     )

app/src/main/java/com/planify/mobile/ui/theme/Type.kt

@@ -6,10 +6,88 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.sp
 
 val Typography = Typography(
+    displayLarge = TextStyle(
+        fontWeight = FontWeight.Bold,
+        fontSize = 57.sp,
+        lineHeight = 64.sp,
+        letterSpacing = (-0.25).sp,
+    ),
+    displayMedium = TextStyle(
+        fontWeight = FontWeight.Bold,
+        fontSize = 45.sp,
+        lineHeight = 52.sp,
+    ),
+    displaySmall = TextStyle(
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 36.sp,
+        lineHeight = 44.sp,
+    ),
+    headlineLarge = TextStyle(
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 32.sp,
+        lineHeight = 40.sp,
+    ),
+    headlineMedium = TextStyle(
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 28.sp,
+        lineHeight = 36.sp,
+    ),
+    headlineSmall = TextStyle(
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 24.sp,
+        lineHeight = 32.sp,
+    ),
+    titleLarge = TextStyle(
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 20.sp,
+        lineHeight = 28.sp,
+    ),
+    titleMedium = TextStyle(
+        fontWeight = FontWeight.Medium,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.15.sp,
+    ),
+    titleSmall = TextStyle(
+        fontWeight = FontWeight.Medium,
+        fontSize = 14.sp,
+        lineHeight = 20.sp,
+        letterSpacing = 0.1.sp,
+    ),
     bodyLarge = TextStyle(
         fontWeight = FontWeight.Normal,
         fontSize = 16.sp,
         lineHeight = 24.sp,
-        letterSpacing = 0.5.sp
-    )
+        letterSpacing = 0.5.sp,
+    ),
+    bodyMedium = TextStyle(
+        fontWeight = FontWeight.Normal,
+        fontSize = 14.sp,
+        lineHeight = 20.sp,
+        letterSpacing = 0.25.sp,
+    ),
+    bodySmall = TextStyle(
+        fontWeight = FontWeight.Normal,
+        fontSize = 12.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.4.sp,
+    ),
+    labelLarge = TextStyle(
+        fontWeight = FontWeight.Medium,
+        fontSize = 14.sp,
+        lineHeight = 20.sp,
+        letterSpacing = 0.1.sp,
+    ),
+    labelMedium = TextStyle(
+        fontWeight = FontWeight.Medium,
+        fontSize = 12.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp,
+    ),
+    labelSmall = TextStyle(
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp,
+    ),
 )