v0.1.0

Initial release

Core JSONPath parsing and evaluation.

Features

• Root, dot, and bracket notation — $, $.key, $['key']
• Wildcards — $[*], $.*
• Recursive descent — $..key, $..*
• Array indexing and slicing — $[0], $[1:3], $[::2]
• Filter expressions — $[?(@.price < 10)]
• Comparison operators — ==, !=, <, >, <=, >=
• Logical operators — &&, ||, !
• Built-in functions — length(), min(), max(), sum()