Remove systemd unit files

Delete all .service files and remove references from .goreleaser.yaml
and configs/install.sh.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: rwlove

.goreleaser.yaml

@@ -53,13 +53,6 @@ nfpms:
     - rpm
     - apk
     - termux.deb
-    contents:
-    - src: ./configs/workoutdiary-api.service
-      dst: /lib/systemd/system/workoutdiary-api.service
-    - src: ./configs/workoutdiary-frontend.service
-      dst: /lib/systemd/system/workoutdiary-frontend.service
-    scripts:
-      postinstall: ./configs/postinstall.sh
 
 archives:
   - files:

configs/WorkoutDiary.service

@@ -1,5 +1,4 @@
 #!/bin/sh
 
-cp workoutdiary /usr/bin/
-cp WorkoutDiary.service /lib/systemd/system/
-cp WorkoutDiary@.service /lib/systemd/system/
+cp workoutdiary-api /usr/bin/
+cp workoutdiary-frontend /usr/bin/