* envconfig impl

* linting

* fix steep type checks

* formatting

* Refactor envconfig classes to use Data.define for immutability

- Refactor ClientConfigTLS, ClientConfigProfile, and ClientConfig to use Data.define

* Rename hash methods to use idiomatic Ruby naming

- Rename from_hash → from_h for all envconfig classes
- Rename to_hash → to_h for all envconfig classes

* Replace TLS config hash with Connection::TLSOptions object

- Rename `to_connect_tls_config` → `to_tls_options`
- Return `Connection::TLSOptions` object instead of plain Hash

* Refactor to use inline pattern instead of temporary variables

* Refactor to_client_connect_options to return tuple for one-liner usage

Changed `to_client_connect_options` to return `[positional_args, keyword_args]`
tuple instead of a hash, enabling clean one-liner client connections:

```ruby
args, kwargs = profile.to_client_connect_options
client = Temporalio::Client.connect(*args, **kwargs)
```

* Make hash methods private

* Remove File.exist? check by using type system for path vs data distinction

- TOML paths (*_path fields) become Pathname objects
- TOML data (*_data fields) remain String objects

* Use symbol keys instead of string keys in Rust FFI bridge

Changed all hash keys from strings to symbols in the Rust-to-Ruby bridge

* Bump golang.org/x/net in /temporalio/test/golangworker (#303)

* Bump tracing-subscriber from 0.3.19 to 0.3.20 in /temporalio (#331)

* Reduce the scope of the illegal call tracer and other tracing fixes (#332)

* Remove unnecessary fully qualified import names

* Remove envconfig import in temporalio.rb

* _source_to_path_and_data prefixed with underscore and private doc visibility

* TLS disabled field now optional

* Rubocop fixes

* Steep fixes

* Renamed envconfig.rb -> env_config.rb
Renamed to_tls_options -> to_client_tls_options

* Pass data string as RString, Rust bridge converts to Vec

* Rename load_client_connect_config -> load_client_connect_options

* Format envconfig.rs

* Nits

* Update core submodule

* Revert irrelevant cancellation changes

* Update Cargo.lock

* Propagate set_headers failure in client bridge

* Add experimental warning

---------

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Chad Retz <[email protected]>