android: teach the linters this codebase's conventions, and fix two real nits

Fourth run got the whole native pipeline through — cargo-ndk built all four
ABIs and uniffi generated the Kotlin — and then failed on style.

Two genuine mistakes, fixed:
  * BoardViewModel's constructor parameter needed its own line.
  * PaddingValues was written fully-qualified inline, which ktlint read as a
    method chain. Importing it is what the rule was actually asking for, and
    what the line should have said anyway.

The other ten were the tools not knowing this codebase:
  * @Composable functions are PascalCase by universal Compose convention.
    Exempted in BOTH .editorconfig (ktlint) and config/detekt.yml — they have to
    agree or one of them is always wrong.
  * MagicNumber on `private val Brand = Color(0xFFF5C518)`. The rule asks for a
    well-named constant; that line IS one. ignorePropertyDeclaration.
  * TooGenericExceptionCaught in the ViewModel and Application. Deliberate and
    already commented: a note that fails to save must become a visible error
    banner rather than a crash, and the store failing to open must still let the
    app start so it can explain itself. Scoped to those two paths, not disabled
    globally — everywhere else the rule is right.

Verified locally this time, both linters clean, using the SAME pinned CLIs from
ci-android:36 that the lane runs. ktlint and detekt are a formatter and a static
analyzer — the same category as cargo fmt and clippy, which is the precedent
ci-requirements already sets. No build was run locally.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/thoughtsync/ui/BoardScreen.kt

@@ -2,6 +2,7 @@ package com.fabledsword.thoughtsync.ui
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
@@ -106,7 +107,7 @@ private fun CaptureField(
 private fun NoteList(notes: List<Note>) {
     LazyColumn(
         modifier = Modifier.fillMaxSize(),
-        contentPadding = androidx.compose.foundation.layout.PaddingValues(16.dp),
+        contentPadding = PaddingValues(16.dp),
         verticalArrangement = Arrangement.spacedBy(8.dp),
     ) {
         // Keyed by id so Compose reuses rows across a refresh instead of

android/app/src/main/java/com/fabledsword/thoughtsync/ui/BoardViewModel.kt

@@ -31,7 +31,9 @@ data class BoardState(
  * (The sync methods are the exception: those are `suspend` on the Kotlin side
  * already, because uniffi bridges the Rust async to coroutines.)
  */
-class BoardViewModel(private val core: ThoughtSync) : ViewModel() {
+class BoardViewModel(
+    private val core: ThoughtSync,
+) : ViewModel() {
     var state by mutableStateOf(BoardState())
         private set