feat: introduce fetch_hyper

[martintmk]

Extracting hyper-related APIs into separate crate. These APIs should be treated only as an internal implementation detail of hyper transport and will never be used directly nor exposed publicly from fetch.

Public APIs are kept to a minimum:

[github-actions]

⚠️ Breaking Changes Detected

error: failed to retrieve local crate data from git revision

Caused by:
    0: failed to retrieve manifest file from git revision source
    1: possibly due to errors: [
         failed when reading /home/runner/work/oxidizer/oxidizer/target/semver-checks/git-origin_main/372167fc8c6a5f23d81f716e0394d6162653999d/scripts/crate-template/Cargo.toml: TOML parse error at line 9, column 26
         |
       9 | keywords = ["oxidizer", {{CRATE_KEYWORDS}}]
         |                          ^
       missing key for inline table element, expected key
       : TOML parse error at line 9, column 26
         |
       9 | keywords = ["oxidizer", {{CRATE_KEYWORDS}}]
         |                          ^
       missing key for inline table element, expected key
       ,
         failed to parse /home/runner/work/oxidizer/oxidizer/target/semver-checks/git-origin_main/372167fc8c6a5f23d81f716e0394d6162653999d/Cargo.toml: no `package` table,
       ]
    2: package `fetch_hyper` not found in /home/runner/work/oxidizer/oxidizer/target/semver-checks/git-origin_main/372167fc8c6a5f23d81f716e0394d6162653999d

Stack backtrace:
   0: anyhow::error::<impl anyhow::Error>::msg
   1: cargo_semver_checks::rustdoc_gen::RustdocFromProjectRoot::get_crate_source
   2: cargo_semver_checks::rustdoc_gen::StatefulRustdocGenerator<cargo_semver_checks::rustdoc_gen::CoupledState>::prepare_generator
   3: cargo_semver_checks::Check::check_release::{{closure}}
   4: cargo_semver_checks::Check::check_release
   5: cargo_semver_checks::exit_on_error
   6: cargo_semver_checks::main
   7: std::sys::backtrace::__rust_begin_short_backtrace
   8: main
   9: <unknown>
  10: __libc_start_main
  11: _start

If the breaking changes are intentional then everything is fine - this message is merely informative.

Remember to apply a version number bump with the correct severity when publishing a version with breaking changes (1.x.x -> 2.x.x or 0.1.x -> 0.2.x).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (b5900ac) to head (79488d3).

Additional details and impacted files

@@           Coverage Diff            @@
##             main     #437    +/-   ##
========================================
  Coverage   100.0%   100.0%            
========================================
  Files         286      299    +13     
  Lines       22978    23562   +584     
========================================
+ Hits        22978    23562   +584     

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[Copilot]

Pull request overview

This PR introduces a new internal crate, fetch_hyper, to host the Hyper-based transport implementation and related utilities while keeping these APIs as an implementation detail (not part of the public surface of higher-level fetch/SDK crates). It also extends templated_uri with explicit vs effective port handling to support transport/telemetry needs.

Changes:

• Added new crates/fetch_hyper crate with transport builder, connection plumbing, TLS backend selection, telemetry helpers, and extensive unit/integration tests + snapshots.
• Updated templated_uri to distinguish explicit ports (port()) from scheme-inferred defaults (effective_port()), with tests/docs updates.
• Wired the new crate into the workspace (root Cargo.toml deps, root README/changelog indices, lockfile updates).

Reviewed changes

Copilot reviewed 36 out of 37 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
README.md	Adds fetch_hyper to the workspace crate list.
crates/templated_uri/src/origin.rs	Adds Origin::effective_port() and clarifies port() semantics + tests.
crates/templated_uri/src/base_uri.rs	Updates BaseUri::port() semantics and adds effective_port() + tests/docs.
crates/fetch_hyper/tests/smoke.rs	Adds wiremock-based end-to-end smoke coverage for the transport.
crates/fetch_hyper/src/tls/mod.rs	Introduces TlsBackend public enum and conversions + tests.
crates/fetch_hyper/src/tls/connector.rs	Adds internal TLS connector dispatch for rustls/native-tls.
crates/fetch_hyper/src/timer.rs	Implements a tick::Clock → hyper::rt::Timer adapter + tests.
crates/fetch_hyper/src/testing.rs	Adds in-process fakes/helpers for transport testing.
crates/fetch_hyper/src/telemetry.rs	Adds ConnectionInfo response extension and OTel attribute helpers + snapshots/tests.
crates/fetch_hyper/src/snapshots/fetch_hyper__telemetry__tests__create_connection_failure_attributes_includes_error_type.snap	Snapshot for failure connection attributes.
crates/fetch_hyper/src/snapshots/fetch_hyper__telemetry__tests__create_connection_attributes_emits_expected_keys.snap	Snapshot for success connection attributes.
crates/fetch_hyper/src/snapshots/fetch_hyper__options__tests__debug_renders_unlimited.snap	Snapshot for ConnectionLifetime debug output (Unlimited).
crates/fetch_hyper/src/snapshots/fetch_hyper__options__tests__debug_renders_per_connection_without_closure_fmt_panic.snap	Snapshot for ConnectionLifetime debug output (PerConnection).
crates/fetch_hyper/src/snapshots/fetch_hyper__options__tests__debug_renders_fixed.snap	Snapshot for ConnectionLifetime debug output (Fixed).
crates/fetch_hyper/src/snapshots/fetch_hyper__builder__tests__defaults.snap	Snapshot for builder default configuration.
crates/fetch_hyper/src/snapshots/fetch_hyper__builder__tests__configured.snap	Snapshot for configured builder state.
crates/fetch_hyper/src/recoverability.rs	Adds recoverability detection over error chains + tests.
crates/fetch_hyper/src/options.rs	Adds RequestFilter and ConnectionLifetime configuration types + tests.
crates/fetch_hyper/src/lib.rs	Declares crate modules and public exports; documents internal-only nature.
crates/fetch_hyper/src/error_labels.rs	Adds centralized error label constants and label collection logic + tests.
crates/fetch_hyper/src/connection/tracked_stream.rs	Adds connection lifecycle tracking stream wrapper with metrics/logs + tests.
crates/fetch_hyper/src/connection/snapshots/fetch_hyper__connection__client_connector__tests__verify_protocol_version_rejects_unsupported.snap	Snapshot for unsupported negotiated protocol error message.
crates/fetch_hyper/src/connection/mod.rs	Declares connection submodules and re-exports.
crates/fetch_hyper/src/connection/io.rs	Defines HyperIo trait alias and Box<dyn HyperIo> connection impl + tests.
crates/fetch_hyper/src/connection/hyper_handler.rs	Implements internal hyper-util client handler and poisoning logic + tests.
crates/fetch_hyper/src/connection/hyper_connector_adapter.rs	Adapts layered connector to tower::Service<Uri> for hyper-util + tests.
crates/fetch_hyper/src/connection/connect.rs	Defines the public Connect trait alias.
crates/fetch_hyper/src/connection/client_connector.rs	Implements connect-timeout, protocol verification, and telemetry around connects + tests.
crates/fetch_hyper/src/builder.rs	Adds HyperTransportBuilder and type-erased HyperTransport wrapper + tests/snapshots.
crates/fetch_hyper/README.md	Adds crate README (doc2readme-style output).
crates/fetch_hyper/logo.png	Adds crate logo via Git LFS.
crates/fetch_hyper/favicon.ico	Adds crate favicon via Git LFS.
crates/fetch_hyper/CHANGELOG.md	Adds initial changelog file.
crates/fetch_hyper/Cargo.toml	Adds crate manifest, features, deps, and test configuration.
CHANGELOG.md	Adds fetch_hyper to root changelog index.
Cargo.toml	Adds fetch_hyper workspace dependency and new workspace deps (hyper TLS/rustls/semconv/wiremock).
Cargo.lock	Locks new dependency graph introduced by fetch_hyper and TLS/test deps.

---

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[Copilot]

Pull request overview

Copilot reviewed 36 out of 37 changed files in this pull request and generated 8 comments.

[Copilot]

Pull request overview

Copilot reviewed 36 out of 37 changed files in this pull request and generated 4 comments.

[Copilot]

Pull request overview

Copilot reviewed 34 out of 35 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 34 out of 35 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

crates/fetch_hyper/CHANGELOG.md:2

• crates/fetch_hyper changelog is currently just a header. Other crates in this workspace include at least an ## Unreleased section or an initial ## [0.1.0] entry; having an empty changelog makes release tooling and changelog navigation less useful. Consider adding an ## Unreleased section (and/or an initial ## [0.1.0] entry) consistent with the rest of the repo’s changelogs.

# Changelog

[Copilot]

Pull request overview

Copilot reviewed 34 out of 35 changed files in this pull request and generated 3 comments.