update links to use repo images and relative paths

Author: aott33

.gitignore

@@ -11,8 +11,5 @@ Gemfile.lock
 .jekyll-metadata
 vendor
 
-# Images - to be added via github
-assets/img/posts
-
 # Backup files
 *.backup

_posts/2025-12-15-bootdev-update-and-goplc.md

@@ -52,7 +52,7 @@ Sounds gimmicky, but it works. The gamification creates genuine motivation to ke
 
 I hit Archmage this week. Here's where I stand:
 
-![bootdev-achievements](https://github.com/user-attachments/assets/3c54a350-1e4c-4fcf-8a28-89cc6f5f0def)
+![bootdev-achievements](/assets/img/posts/go-plc/bootdev-achievements.jpg)
 _Level 100 Archmage - 1,464 lessons completed across 20 courses_
 
 I have three more courses and the capstone project remaining. My estimate is completion by end of January.
@@ -98,16 +98,20 @@ GoPLC communicates with industrial devices via standard protocols and exposes da
 
 Here are the initial mockups for the monitoring interface:
 
-![ux-overview](https://github.com/user-attachments/assets/0eb6b3b6-ed02-4c3f-b668-a01ae0b6646b)
-![ux-compact](https://github.com/user-attachments/assets/5f085881-8d82-4e0d-8fcf-11671883bb62)
+![ux-overview](/assets/img/posts/go-plc/ux-overview.png)
 _Main dashboard showing sources, tasks, system health, and variable values_
 
+![ux-compact](/assets/img/posts/go-plc/ux-compact.png)
+_Compact sidebar view_
+
 The interface is designed for operators who need to quickly assess system status. The alert bar at the top shows active errors and warnings. Sources and tasks display real-time connection and execution status.
 
-![ux-alerts-expanded](https://github.com/user-attachments/assets/16552658-80ff-49ac-b4d1-f400dc25373c)
-![ux-alerts-compact](https://github.com/user-attachments/assets/decc1873-71ce-4b54-b40c-c0d827ac25f6)
+![ux-alerts-expanded](/assets/img/posts/go-plc/ux-alerts-expanded.png)
 _Alert system showing connection errors and value warnings with timestamps_
 
+![ux-alerts-compact](/assets/img/posts/go-plc/ux-alerts-compact.png)
+_Compact view with alerts expanded_
+
 Error messages are human-readable. No cryptic codes or hex values. When something fails, you can see exactly what happened and when.
 
 ### Technical Implementation