Add project documentation and test setup guides

Added comprehensive documentation for the KMM project structure, build
commands, and UI testing setup/troubleshooting.

Documentation added:
- CLAUDE.md: Complete KMM project guide for Claude Code with architecture,
  build commands, common tasks, and development patterns
- iosApp/UI_TESTS_*.md: UI testing strategy, implementation guides, summaries
- iosApp/XCUITEST_*.md: XCUITest implementation and debugging guides
- iosApp/TEST_FAILURES_ANALYSIS.md: Analysis of common test failures
- iosApp/ACCESSIBILITY_IDENTIFIERS_FIX.md: Guide for fixing accessibility issues
- iosApp/FIX_TEST_TARGET*.md: Guides for fixing test target configuration
- iosApp/fix_test_target.sh: Script to automate test target setup

The CLAUDE.md serves as the primary documentation for working with this
repository, providing quick access to build commands, architecture overview,
and common development tasks for both iOS and Android platforms.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

iosApp/FIX_TEST_TARGET_MANUAL.md

@@ -0,0 +1,78 @@
+# Fix MyCribTests Target Configuration
+
+## The Problem
+
+The tests are failing with "No target application path specified" because the test target's `TEST_HOST` setting is hardcoded to a wrong path:
+
+```
+TEST_HOST = /Users/treyt/Desktop/code/MyCrib/MyCribKMM/iosApp/build/Release-iphoneos/MyCrib.app//MyCrib
+```
+
+This path doesn't exist when running tests in Debug mode on the simulator.
+
+## The Fix (Manual - Do This in Xcode)
+
+1. **Open the project in Xcode:**
+   ```bash
+   cd /Users/treyt/Desktop/code/MyCrib/MyCribKMM/iosApp
+   open iosApp.xcodeproj
+   ```
+
+2. **Select the MyCribTests target:**
+   - Click on the project in the Project Navigator (blue icon at top)
+   - Select **MyCribTests** from the TARGETS list
+
+3. **Go to Build Settings:**
+   - Click the **Build Settings** tab
+   - Make sure "All" and "Combined" are selected (not "Basic" or "Customized")
+
+4. **Search for "TEST_HOST":**
+   - Use the search box at top right
+   - Type "TEST_HOST"
+
+5. **Set TEST_HOST value:**
+   - Double-click the value field
+   - Change from:
+     ```
+     /Users/treyt/Desktop/code/MyCrib/MyCribKMM/iosApp/build/Release-iphoneos/MyCrib.app//MyCrib
+     ```
+   - To:
+     ```
+     $(BUILT_PRODUCTS_DIR)/MyCrib.app/MyCrib
+     ```
+   - Press Enter
+
+6. **Verify BUNDLE_LOADER:**
+   - Clear the search, search for "BUNDLE_LOADER"
+   - It should be set to:
+     ```
+     $(TEST_HOST)
+     ```
+   - If not, set it to that value
+
+7. **Clean and rebuild:**
+   - Product → Clean Build Folder (Cmd+Shift+K)
+   - Product → Build (Cmd+B)
+
+8. **Run tests:**
+   - Product → Test (Cmd+U)
+   - Or click the diamond icon next to any test method
+
+## Verification
+
+After making these changes, run:
+
+```bash
+xcodebuild -project iosApp.xcodeproj -target MyCribTests -showBuildSettings | grep TEST_HOST
+```
+
+Should output:
+```
+TEST_HOST = $(BUILT_PRODUCTS_DIR)/MyCrib.app/MyCrib
+```
+
+NOT a hardcoded absolute path.
+
+## Why This Happened
+
+The test target was likely created manually or the project was moved, causing Xcode to lose the proper build settings reference.