fix(release): switch TUI reqwest from native-tls to rustls

The aarch64-unknown-linux-gnu release build for `deepseek-tui` failed in
release.yml run 25327475634 with:

    openssl-sys v0.9.111: 'openssl/opensslconf.h' file not found

`crates/tui/src/main.rs` was the only crate in the workspace pulling
`reqwest` with `default-features = false, features = ["native-tls", ...]`
— every other crate (including the dispatcher in `crates/cli`) already
inherits the workspace default `["json", "rustls"]`. The aarch64 leg
builds with `cargo zigbuild --target aarch64-unknown-linux-gnu.2.28`,
whose zig sysroot does not ship openssl headers; the matching native-tls
job for v0.8.9 succeeded by chance against an earlier runner image but
the current `ubuntu-24.04-arm` image no longer satisfies openssl-sys's
header probe under zigbuild.

Switching the TUI's reqwest features from `native-tls` to `rustls` brings
it in line with the rest of the workspace and removes nine crates from
the build graph entirely (`openssl`, `openssl-sys`, `openssl-probe`,
`openssl-macros`, `native-tls`, `hyper-tls`, `tokio-native-tls`,
`foreign-types`, `foreign-types-shared`). reqwest 0.13.1 already uses
`rustls-platform-verifier` for OS trust-store integration, so end-user
TLS behavior against api.deepseek.com remains equivalent.

Verified locally:
- cargo clippy --workspace --all-targets --all-features --locked passes
- cargo build --release -p deepseek-tui --locked succeeds
- cargo fmt --all -- --check is clean
- no source code in `crates/` references native-tls / openssl directly

This is a release-pipeline-only fix; no user-visible feature changes.

Cargo.lock

@@ -1789,21 +1789,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
 
-[[package]]
-name = "foreign-types"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
-dependencies = [
- "foreign-types-shared",
-]
-
-[[package]]
-name = "foreign-types-shared"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
-
 [[package]]
 name = "form_urlencoded"
 version = "1.2.2"
@@ -2209,22 +2194,6 @@ dependencies = [
  "tower-service",
 ]
 
-[[package]]
-name = "hyper-tls"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
-dependencies = [
- "bytes",
- "http-body-util",
- "hyper",
- "hyper-util",
- "native-tls",
- "tokio",
- "tokio-native-tls",
- "tower-service",
-]
-
 [[package]]
 name = "hyper-util"
 version = "0.1.19"
@@ -2986,23 +2955,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "native-tls"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
-dependencies = [
- "libc",
- "log",
- "openssl",
- "openssl-probe 0.1.6",
- "openssl-sys",
- "schannel",
- "security-framework 2.11.1",
- "security-framework-sys",
- "tempfile",
-]
-
 [[package]]
 name = "new_debug_unreachable"
 version = "1.0.6"
@@ -3256,56 +3208,12 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
-[[package]]
-name = "openssl"
-version = "0.10.75"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08838db121398ad17ab8531ce9de97b244589089e290a384c900cb9ff7434328"
-dependencies = [
- "bitflags 2.10.0",
- "cfg-if",
- "foreign-types",
- "libc",
- "once_cell",
- "openssl-macros",
- "openssl-sys",
-]
-
-[[package]]
-name = "openssl-macros"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.114",
-]
-
-[[package]]
-name = "openssl-probe"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
-
 [[package]]
 name = "openssl-probe"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
 
-[[package]]
-name = "openssl-sys"
-version = "0.9.111"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
-dependencies = [
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
-
 [[package]]
 name = "option-ext"
 version = "0.2.0"
@@ -3930,12 +3838,10 @@ dependencies = [
  "http-body-util",
  "hyper",
  "hyper-rustls",
- "hyper-tls",
  "hyper-util",
  "js-sys",
  "log",
  "mime_guess",
- "native-tls",
  "percent-encoding",
  "pin-project-lite",
  "quinn",
@@ -3946,7 +3852,6 @@ dependencies = [
  "serde_json",
  "sync_wrapper",
  "tokio",
- "tokio-native-tls",
  "tokio-rustls",
  "tokio-util",
  "tower",
@@ -4048,7 +3953,7 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "612460d5f7bea540c490b2b6395d8e34a953e52b491accd6c86c8164c5932a63"
 dependencies = [
- "openssl-probe 0.2.1",
+ "openssl-probe",
  "rustls-pki-types",
  "schannel",
  "security-framework 3.5.1",
@@ -5040,16 +4945,6 @@ dependencies = [
  "syn 2.0.114",
 ]
 
-[[package]]
-name = "tokio-native-tls"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
-dependencies = [
- "native-tls",
- "tokio",
-]
-
 [[package]]
 name = "tokio-rustls"
 version = "0.26.4"

crates/tui/Cargo.toml

@@ -37,7 +37,7 @@ dirs = "6.0.0"
 futures-util = "0.3.31"
 ratatui = "0.29"
 regex = "1.11"
-reqwest = { version = "0.13.1", default-features = false, features = ["blocking", "json", "stream", "multipart", "native-tls", "http2"] }
+reqwest = { version = "0.13.1", default-features = false, features = ["blocking", "json", "stream", "multipart", "rustls", "http2"] }
 similar = "2"
 rustyline = "15.0.0"
 serde = { version = "1.0.228", features = ["derive"] }