v0.1.10

The CLI accepts negative numbers and keeps explicit zero values, large integers stay exact on every surface, and nested default and json:",string" tags follow encoding/json.

• The CLI accepts a negative number as a flag value or positional argument: --min -5, temp -40 --side right, --ratio -0.5, -1e3. Tools no longer need -- or argument rewriting for it. A digit declared as a short flag stays a flag, and -j, -y and other flags are unchanged. A stray negative number now fails with unexpected argument -40 rather than unknown flag -4.
• An explicit CLI value equal to the zero value now reaches the operation when its input field has a default tag and omitempty: --level 0, --enabled=false, --label "", a root flag such as --limit 0, and a flag's env var set to 0. Before, the default replaced it. HTTP and MCP already kept an explicit 0, false or "".
• An int64 or uint64 input above 2^53, such as a Telegram message, chat, document or custom emoji ID, now reaches the operation exactly on the CLI, HTTP and MCP. op.(*Entry).Decode used to read every number as float64, so 5312241539987020022 arrived as 5312241539987019776 and 18446744073709551615 failed to decode into a uint64. --fields output likewise keeps such integers exact, paged or not. Numbers written with a fraction or exponent still decode as before, so 1.0 and 1e3 still fill an integer field.
• Input default tags now apply in nested struct fields, not only in embedded ones, on the CLI, HTTP and MCP. A pointer-to-struct section gets its defaults only when the caller sends it. An omitted section stays nil, so a handler can still tell absent from present. A tool whose input nests a struct with default tags will now see those defaults where it saw zero values.
• A json:",string" tag now follows encoding/json everywhere. The input schema types such a field as a string, and a default on it is written as a JSON string ("7", not 7). The tag is ignored on slices, maps, structs and pointers to pointers, as encoding/json ignores it. An explicit zero CLI value (--count 0, --enabled=false, an empty <id>) is sent in its quoted form. Each operation under a shared <id> path placeholder uses its own field's tag.