Array encoding for TOON format.

Handles encoding of vectors with support for:
- Inline primitive arrays (key[N]: val1,val2,val3)
- Tabular arrays of objects (key[N]{col1,col2}: ...)
- Nested arrays of arrays

Object (map) encoding for TOON format.

Handles encoding of maps with:
- Simple key-value pairs
- Nested objects with indentation
- Arrays as values
- Key collapsing for nested single-key objects

Key manipulation utilities for TOON encoding.

Provides functions to collapse nested single-key objects into dotted paths.

Data normalization for TOON encoding.

Converts Clojure data structures to JSON-compatible values:
- Keywords → strings
- Symbols → strings
- Sets → vectors
- Maps with keyword keys → maps with string keys
- UUIDs → strings
- Dates/Instants → ISO-8601 strings
- NaN/Infinity → nil
- Functions/vars → nil

Primitive value encoding for TOON format.

Handles encoding of nil, booleans, numbers, and strings.

Line writer for managing indented TOON output.

The LineWriter handles:
- Indentation management (configurable spaces per level)
- Line accumulation
- Whitespace invariants (no trailing spaces or newlines)