docs: update coverage, READMEs, and add security tests

- Update COVERAGE.md to reflect completed features (now ~60%)
- Update main README with features and tools list
- Update CLI README with streaming options
- Expand API tests from 5 to 11 (add stream endpoint tests)
- Add 14 security tests for path traversal, command injection
- Total tests: 109 (up from 88)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

webber-cli/README.md

@@ -22,13 +22,36 @@ pip install -e .
 # Check API connection
 webber-cli status
 
-# Explore a codebase
+# Explore a codebase (streams by default)
 webber-cli explore "find all python files" -d /path/to/project
 
+# Batch mode (wait for full response)
+webber-cli explore "find bugs" -d /path/to/project --no-stream
+
 # Interactive chat mode
 webber-cli chat -d /path/to/project
+
+# Chat without streaming
+webber-cli chat -d /path/to/project --no-stream
 ```
 
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `status` | Check API connection and list available agents |
+| `explore QUERY` | One-shot codebase exploration |
+| `chat` | Interactive chat session |
+
+## Options
+
+| Option | Short | Description |
+|--------|-------|-------------|
+| `--directory` | `-d` | Working directory for exploration |
+| `--api` | `-a` | API URL (default: `$WEBBER_API_URL` or `http://localhost:8095`) |
+| `--stream/--no-stream` | `-s` | Enable/disable streaming (default: enabled) |
+| `--agent` | | Agent to use (default: `explore`) |
+
 ## Configuration
 
 Set the API URL via environment variable: