ACP debug tools pane (#36768)

Adds a new "acp: open debug tools" action that opens a new workspace
item with a log of ACP messages for the active connection.

Release Notes:

- N/A

Cargo.toml

@@ -1,6 +1,7 @@
 [workspace]
 resolver = "2"
 members = [
+    "crates/acp_tools",
     "crates/acp_thread",
     "crates/action_log",
     "crates/activity_indicator",
@@ -227,6 +228,7 @@ edition = "2024"
 # Workspace member crates
 #
 
+acp_tools = { path = "crates/acp_tools" }
 acp_thread = { path = "crates/acp_thread" }
 action_log = { path = "crates/action_log" }
 agent = { path = "crates/agent" }
@@ -425,7 +427,7 @@ zlog_settings = { path = "crates/zlog_settings" }
 #
 
 agentic-coding-protocol = "0.0.10"
-agent-client-protocol = "0.0.30"
+agent-client-protocol = "0.0.31"
 aho-corasick = "1.1"
 alacritty_terminal = { git = "https://github.com/zed-industries/alacritty.git", branch = "add-hush-login-flag" }
 any_vec = "0.14"