ipx 1.5.0, ipx-directory 1.4.0 and ipx-web 1.3.0

The security audit's 26 findings, three dependency advisories and the
performance issues found in traces (#318-#352), each already deployed
as a -dev build.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/directory/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ipx-directory"
-version = "1.3.1-dev"
+version = "1.4.0"
 edition.workspace = true
 publish = false