Wire local TDLib into iOS FFI build

crates/tele-ios-ffi/README.md

@@ -6,7 +6,7 @@ Current scope:
 
 - Exposes a fake-backed `SessionHandle` for Swift integration tests and app shell work.
 - Mirrors the `tele-core::session` DTO/event model with UniFFI-compatible records and enums.
-- Keeps real TDLib session creation out of this crate until iOS simulator/device linking is validated.
+- Supports a fake-only build for UI work and a real TDLib build path using local iOS TDLib artifacts.
 
 Generate Swift bindings and headers:
 
@@ -40,5 +40,7 @@ Current linking status:
 
 - Xcode is installed at `/Applications/Xcode.app`, and `DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer xcodebuild -version` reports Xcode 26.5.
 - The iOS 26.5 simulator runtime is installed and `scripts/check-ios-prereqs.sh` passes with available iPhone/iPad simulators.
-- The current app shell uses the fake Swift bridge. Real TDLib iOS simulator/device linking is still pending until TDLib is built for `iphonesimulator` and `iphoneos` and wired into the UniFFI target.
-- Run `scripts/check-ios-tdlib-linking.sh` to reproduce the current TDLib iOS blocker documented in `docs/ios/tdlib-linking.md`.
+- The current app shell uses the fake Swift bridge.
+- `tdlib-rs` does not publish iOS `download-tdlib` archives, so real iOS linking uses `tele-core/tdlib-local` and `LOCAL_TDLIB_PATH`.
+- Local TDLib linking is validated for `aarch64-apple-ios-sim` via `scripts/check-ios-tdlib-linking.sh` and for `aarch64-apple-ios` via `IOS_RUST_TARGET=aarch64-apple-ios scripts/build-ios-ffi-with-local-tdlib.sh`.
+- `scripts/build-ios-real-ffi-xcframework.sh` packages local simulator Rust slices plus local `libtdjson` into app-local XCFrameworks, generates Swift bindings, and enables Xcode builds with `TELE_IOS_USE_LOCAL_FFI=1`.