fix: add uri strip_prefix /forge to Caddyfile generator — Forgejo routes 404 without it (completes #1080) (#1103)

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

.woodpecker/edge-subpath.yml

@@ -59,6 +59,7 @@ steps:
           echo ''
           echo '    # Reverse proxy to Forgejo'
           echo '    handle /forge/* {'
+          echo '        uri strip_prefix /forge'
           echo '        reverse_proxy 127.0.0.1:3000'
           echo '    }'
           echo ''

lib/generators.sh

@@ -860,6 +860,7 @@ _generate_caddyfile_subpath() {
 
     # Reverse proxy to Forgejo
     handle /forge/* {
+        uri strip_prefix /forge
         reverse_proxy forgejo:3000
     }
 

nomad/jobs/edge.hcl

@@ -151,6 +151,7 @@ EOT
 
     # Reverse proxy to Forgejo
     handle /forge/* {
+        uri strip_prefix /forge
         reverse_proxy 127.0.0.1:3000
     }
 

tests/test-caddyfile-routing.sh

@@ -89,6 +89,13 @@ check_forgejo_routing() {
     tr_fail "Missing Forgejo handle block (handle /forge/*)"
   fi
 
+  # Check uri strip_prefix /forge (required for Forgejo routing)
+  if echo "$CADDYFILE" | grep -q "uri strip_prefix /forge"; then
+    tr_pass "Forgejo strip_prefix configured (/forge)"
+  else
+    tr_fail "Missing Forgejo strip_prefix (/forge)"
+  fi
+
   # Check reverse_proxy to Forgejo on port 3000
   if echo "$CADDYFILE" | grep -q "reverse_proxy 127.0.0.1:3000"; then
     tr_pass "Forgejo reverse_proxy configured (127.0.0.1:3000)"