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>

Cargo.lock

@@ -1860,7 +1860,7 @@ checksum = "791930b43c0d5973160d90a8f3894509f2b273430f5c5c73b668636d0287c5c0"
 
 [[package]]
 name = "ipx"
-version = "1.4.1-dev"
+version = "1.5.0"
 dependencies = [
  "ammonia",
  "anyhow",
@@ -1894,7 +1894,7 @@ dependencies = [
 
 [[package]]
 name = "ipx-directory"
-version = "1.3.1-dev"
+version = "1.4.0"
 dependencies = [
  "ammonia",
  "anyhow",