fix(editor): address review feedback on a11y cursor sync

- getAccessibilityClassName() now mirrors the !isReleased && isEnabled &&
  isEditable guard used by createAccessibilityNodeInfo(), so a read-only or
  released editor is no longer announced as an "Edit box".
- Word granularity navigation snaps a mid-word offset to the enclosing word's
  start/end, so navigation traverses the whole word (e.g. "hello"@2 -> [0,5])
  instead of a truncated range. Adds regression tests for mid-word offsets.
- Narrow the accessibility catch blocks to IndexOutOfBoundsException /
  IllegalArgumentException instead of a broad Exception, per project convention.

Author: makhlwf

editor/src/main/java/com/itsaky/androidide/editor/ui/IDEEditor.kt

@@ -651,7 +651,14 @@ constructor(
     private val isTouchExplorationEnabled: Boolean
         get() = accessibilityManager?.isTouchExplorationEnabled == true
 
-    override fun getAccessibilityClassName(): CharSequence = EditText::class.java.name
+    override fun getAccessibilityClassName(): CharSequence =
+        // Only advertise EditText semantics in the same states createAccessibilityNodeInfo()
+        // does, so a read-only or released editor is not announced as an "Edit box".
+        if (!isReleased && isEnabled && isEditable) {
+            EditText::class.java.name
+        } else {
+            super.getAccessibilityClassName()
+        }
 
     override fun createAccessibilityNodeInfo(): AccessibilityNodeInfo? {
         val info = super.createAccessibilityNodeInfo() ?: return null
@@ -713,7 +720,10 @@ constructor(
             if (line < 0 || column < 0) return false
             setSelection(line, column)
             true
-        } catch (e: Exception) {
+        } catch (e: IndexOutOfBoundsException) {
+            log.error("Error placing cursor from accessibility click", e)
+            false
+        } catch (e: IllegalArgumentException) {
             log.error("Error placing cursor from accessibility click", e)
             false
         }
@@ -796,7 +806,10 @@ constructor(
                 setSelectionRegion(startPos.line, startPos.column, endPos.line, endPos.column)
             }
             true
-        } catch (e: Exception) {
+        } catch (e: IndexOutOfBoundsException) {
+            log.error("Error applying accessibility selection [$start, $end]", e)
+            false
+        } catch (e: IllegalArgumentException) {
             log.error("Error applying accessibility selection [$start, $end]", e)
             false
         }

editor/src/main/java/com/itsaky/androidide/editor/utils/EditorAccessibilitySegments.kt

@@ -123,6 +123,11 @@ object EditorAccessibilitySegments {
         if (length <= 0 || offset >= length) return null
         val iterator = BreakIterator.getWordInstance().apply { setText(text.toString()) }
         var start = if (offset < 0) 0 else offset
+        // If the offset lands inside a word, snap back to that word's start so the whole
+        // enclosing word is traversed instead of a truncated tail (e.g. "hello"@2 -> [0,5]).
+        if (isLetterOrDigit(text, start)) {
+            while (start > 0 && isLetterOrDigit(text, start - 1)) start--
+        }
         // Skip past any non-word characters (whitespace, punctuation) to the start of a word.
         while (!isLetterOrDigit(text, start) && !isWordStart(text, start)) {
             start = iterator.following(start)
@@ -138,6 +143,11 @@ object EditorAccessibilitySegments {
         if (length <= 0 || offset <= 0) return null
         val iterator = BreakIterator.getWordInstance().apply { setText(text.toString()) }
         var end = if (offset > length) length else offset
+        // If the offset lands inside a word, snap forward to that word's end so the whole
+        // enclosing word is traversed instead of a truncated head (e.g. "hello"@2 -> [0,5]).
+        if (isLetterOrDigit(text, end - 1) && isLetterOrDigit(text, end)) {
+            while (end < length && isLetterOrDigit(text, end)) end++
+        }
         while (!isLetterOrDigit(text, end - 1) && !isWordEnd(text, end)) {
             end = iterator.preceding(end)
             if (end == DONE) return null

editor/src/test/java/com/itsaky/androidide/editor/utils/EditorAccessibilitySegmentsTest.kt

@@ -82,6 +82,17 @@ class EditorAccessibilitySegmentsTest {
         assertThat(following("foo bar", word, 7)).isNull()
     }
 
+    @Test
+    fun `word following from inside a word snaps to the whole enclosing word`() {
+        // Offset 2 is inside "hello"; the whole word must be traversed, not a truncated tail.
+        assertThat(following("hello", word, 2)).isEqualTo(listOf(0, 5))
+    }
+
+    @Test
+    fun `word preceding from inside a word snaps to the whole enclosing word`() {
+        assertThat(preceding("hello", word, 2)).isEqualTo(listOf(0, 5))
+    }
+
     @Test
     fun `word preceding returns previous word`() {
         val text = "foo bar"