Add `#[derive(Wrap)]` to treat a struct as its inner type, generating
`From`, `Deref`, and `DerefMut` implementations. Supports single-field
structs or multi-field structs with a `#[wrap]`-marked field.

The legacy `parser` feature and its module tree (`mingling::parser`,
`Argument`, `Picker`, `Pickable`, etc.) have been fully removed and
replaced by the `picker` feature powered by `arg-picker`.

BREAKING CHANGE: Remove `parser` feature and use `picker` instead.
Migration guide: Replace `features = ["parser"]` with
`features = ["picker"]` and update API usage per the provided table.

The `dispatcher!` macro no longer requires a `CMD*` dispatcher type
argument; the dispatcher struct is now generated internally as
`__Dispatcher{Pascal}`. The `Node` type, `node!` macro, and
`Dispatcher::node()` / `clone_dispatcher()` methods are removed.

Dispatchers are now always registered at compile time, removing the
`with_dispatcher` / `with_dispatchers` methods and the
`PathfinderConfig` API. The `dispatch_tree` feature now only controls
the matching strategy (trie vs linear list).

Rename `Confirmer` resource to `ResConfirm`, `ConfirmerCount` to
`ConfirmCount`, and `ConfirmerPredicate` to `ConfirmPredicate`. Update
related setups, guards, and documentation references.

Extract OSC94 state and guard types from `res` into a dedicated
`osc94` module, and add `ConfirmerCount` and `ConfirmerPredicate`
types with `YesConfirm` and `TrueConfirm` implementations.

Add Confirmer with cached confirmation state and predicate-based
parsing for yes/no and true/false inputs. Add ConfirmerSetup to
register the resource and auto-confirm when skip mode is enabled.
Add StandardInputArgsSetup to read piped stdin as appended arguments.
Reorganize module exports in res and setups.