Scope extension capabilities to invocation lifetimes (#41020)

## What changed

- Add callback lifetimes to extension `ToolCall`, `ToolEnvironment`, turn-input context, and skill-read request types.
- Require extension tool executors to handle calls for any invocation lifetime and tie their returned futures to that lifetime.
- Update built-in extensions, adapters, and tests to use the lifetime-scoped APIs without retaining host-owned environment capabilities.

GitOrigin-RevId: aca9ce3a1b6870df550bc84ec9308cc65533f161

codex-rs/core/src/tools/code_mode/execute_handler.rs

@@ -146,7 +146,10 @@ impl ToolExecutor<ToolInvocation> for CodeModeExecuteHandler {
         self.spec.clone()
     }
 
-    fn handle(&self, invocation: ToolInvocation) -> codex_tools::ToolExecutorFuture<'_> {
+    fn handle<'a>(&'a self, invocation: ToolInvocation) -> codex_tools::ToolExecutorFuture<'a>
+    where
+        ToolInvocation: 'a,
+    {
         Box::pin(self.handle_call(invocation))
     }
 }

codex-rs/core/src/tools/code_mode/wait_handler.rs

@@ -54,7 +54,10 @@ impl ToolExecutor<ToolInvocation> for CodeModeWaitHandler {
         create_wait_tool()
     }
 
-    fn handle(&self, invocation: ToolInvocation) -> codex_tools::ToolExecutorFuture<'_> {
+    fn handle<'a>(&'a self, invocation: ToolInvocation) -> codex_tools::ToolExecutorFuture<'a>
+    where
+        ToolInvocation: 'a,
+    {
         Box::pin(self.handle_call(invocation))
     }
 }