v0.1.2

What's changed

• Fix error trace — trace now uses schema field names (atoms like [:address, :city]) instead of raw source keys (strings like ["address", "city"]) or opaque Access function references ([#Function<...>])
• Fix dynamic map trace — key parse errors no longer include the unparsed key in trace; value errors use the parsed key
• Optimize trace building — internally uses prepend + reverse instead of append