fix: strip inline comments in env file parser, fix backtick syntax errors

loadEnvFile now strips " # ..." suffixes from values so inline comments
in ~/.config/ollie/env don't leak into environment variables.  Also add
kiro to the supported-backends error message and fix two raw-string
backtick escaping errors in tool descriptions.

pkg/backend/new.go

@@ -28,6 +28,9 @@ func loadEnvFile(path string) {
 			continue
 		}
 		k = strings.TrimSpace(k)
+		if i := strings.Index(v, " #"); i >= 0 {
+			v = v[:i]
+		}
 		v = strings.TrimSpace(v)
 		if k != "" && os.Getenv(k) == "" {
 			os.Setenv(k, v)
@@ -79,7 +82,7 @@ func New() (Backend, error) {
 	case "kiro", "codewhisperer":
 		return NewCodeWhisperer(os.Getenv("OLLIE_KIRO_TOKEN"))
 	default:
-		return nil, fmt.Errorf("unknown OLLIE_BACKEND %q (supported: ollama, openai, openrouter, anthropic, copilot)", which)
+		return nil, fmt.Errorf("unknown OLLIE_BACKEND %q (supported: ollama, openai, openrouter, anthropic, copilot, kiro)", which)
 	}
 }
 

pkg/tools/execute/server.go

@@ -83,7 +83,7 @@ Usage:
 - Default timeout: 30 seconds
 
 Tool Discovery:
-- List tools: \`execute_code('ls ' + \"" + ToolsPath() + "\")\`
+- List tools: execute_code with 'ls ` + ToolsPath() + `'
 - Check script permissions before execution
 
 Examples:

pkg/tools/file/read.go

@@ -28,7 +28,7 @@ Usage:
 
 Notes:
 - Use offset/limit parameters for large files
-- Read directories with \`execute_code('ls <path>')\`, not this tool
+- Read directories with execute_code, not this tool
 - Call multiple file_read operations in parallel when exploring
 - Always read a file before editing or writing to it with file_edit/file_write`,
 	InputSchema: json.RawMessage(`{