Passwords containing @, #, :, ?, /, %, &, space and other special
characters broke URL parsing, causing streams to not be detected.
Replaced fmt.Sprintf string concatenation with url.URL struct for
building RTSP/HTTP URLs. Credentials in userinfo are now handled via
url.UserPassword() which encodes special chars automatically.
Split replacePlaceholders into two phases:
- Phase 1: safe placeholders (channel, width, IP, port)
- Phase 2: credential placeholders with context-aware encoding:
- Query string: url.Values.Set + Encode (auto percent-encoding)
- Path segments: url.PathEscape
Normal passwords (letters, digits, -._~) produce identical URLs
as before -- encoding is a no-op for safe characters.
Fixes#10
eduard256