Fix typo in project history description

Author: AasthathecoderX

docs/architecture.md

@@ -71,4 +71,4 @@ Each backend service internally follows Clean Architecture:
 ## Project History & Engineering Logs
 This system was built incrementally across 19 distinct phases.
 - **[View Full Phase-by-Phase Development Notes](https://your-drive-link-here)**
-  * Contains raw research, initial phase plans, and detailed troubleshooting steps used during the "vibe coding" process.
+  * Contains raw research, initial phase plans, and detailed troubleshooting steps used during the  coding process.