chore(release): v1.9.22 — complete H2 skip for tunnel_request single ops (#1041)

Bumps Cargo.toml v1.9.21 → v1.9.22. Ships @yyoyoian-pixel's PR #1041
which completes #1040 — v1.9.21 skipped H2 for tunnel_batch_request_to
but missed tunnel_request (single-op connect path). 5/5 h2_relay_request
call sites now audited; all full-tunnel paths use H1, relay paths keep
H2. 209 lib tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: therealaleph

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "mhrv-rs"
-version = "1.9.21"
+version = "1.9.22"
 edition = "2021"
 description = "Rust port of MasterHttpRelayVPN -- DPI bypass via Google Apps Script relay with domain fronting"
 license = "MIT"

Cargo.toml

@@ -0,0 +1,20 @@
+<!-- see docs/changelog/v1.1.0.md for the file format: Persian, then `---`, then English. -->
+• **Fix: skip H2 برای \`tunnel_request\` (single ops) — completes [#1040](https://github.com/therealaleph/MasterHttpRelayVPN-RUST/pull/1040)** ([PR #1041](https://github.com/therealaleph/MasterHttpRelayVPN-RUST/pull/1041) by @yyoyoian-pixel). v1.9.21's PR #1040 H2 رو از \`tunnel_batch_request_to\` skip کرد ولی \`tunnel_request\` (single-op path برای plain \`connect\` ops) جا موند. کاربرانی که session‌های full-tunnel با single-op path داشتند هنوز ۱۶-۱۷s long-poll stalls می‌گرفتن. این PR fix رو complete می‌کنه — same shape: حذف H2 try/fallback/NonRetryable block، مستقیم H1 pool \`acquire()\`. همه ۵ تا call site \`h2_relay_request\` audit شدن (جدول در PR description) — relay-mode paths H2 رو نگه می‌دارن (apps_script users بدون change)، همه full-tunnel paths حالا H1-only. ۲۰۹ lib test still pass.
+---
+• **Fix: skip H2 for `tunnel_request` (single ops) — completes [#1040](https://github.com/therealaleph/MasterHttpRelayVPN-RUST/pull/1040)** ([PR #1041](https://github.com/therealaleph/MasterHttpRelayVPN-RUST/pull/1041) by @yyoyoian-pixel).
+
+v1.9.21's PR #1040 skipped H2 for `tunnel_batch_request_to` but missed `tunnel_request` — the single-op path used for plain `connect` ops. Users on full-tunnel sessions that went through the single-op path still saw 16-17s long-poll stalls. This PR completes the fix: same shape, remove the H2 try/fallback/NonRetryable block from `tunnel_request`, go straight to H1 pool `acquire()`.
+
+All 5 `h2_relay_request` call sites audited:
+
+| Call site | Function | Mode | H2 skipped? |
+|---|---|---|---|
+| `do_relay_once_with` | relay | Relay | No (correct — relay benefits from H2) |
+| `relay()` exit-node | relay | Relay | No (correct) |
+| `tunnel_request` | tunnel single op | Full tunnel | **Yes (this release)** |
+| `tunnel_batch_request_to` | tunnel batch | Full tunnel | Yes (v1.9.21) |
+| `tunnel_batch_request_with_timeout` | tunnel batch | Full tunnel | Yes (v1.9.21) |
+
+No other full-tunnel paths use H2 after this fix. Relay-mode H2 stays — r0ar's controlled A/B in #962 confirmed h2 is strictly better for apps_script-mode users, and that path is unchanged.
+
+209 lib tests still pass. `domain_fronter.rs`-only, -41 net lines.