chore(release): Update version to v1.4.448

Author: github-actions[bot]

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## v1.4.448 (2026-04-17)
+
+### Direct commits
+
+- Fix: fall back to streamed delta text when completed Codex response is empty
+
+- Prefer extracted completed text only when content stays non-empty
+- Fall back to accumulated streamed delta text otherwise
+
+- Preserve streamed response text before completed response evaluation
+- Add regression test for empty completed output text
+
+- Simulate SSE delta stream followed by blank completion
+- Verify Send returns delta text when completion lacks content
+
 ## v1.4.447 (2026-04-17)
 
 ### PR [#2097](https://github.com/danielmiessler/Fabric/pull/2097) by [ksylvan](https://github.com/ksylvan): Add Claude Opus 4.7 model support and bump Anthropic SDK to v1.37.0

cmd/fabric/version.go

@@ -1,3 +1,3 @@
 package main
 
-var version = "v1.4.447"
+var version = "v1.4.448"

cmd/generate_changelog/changelog.db

@@ -1 +1 @@
-"1.4.447"
+"1.4.448"