Picking a file loads its current content to edit in place

proposed_yaml binds to the file select: the selected file's content
fetches through Gitea's contents API (base64-decoded by the jq
filter) and lands in the editor. On-site contributions no longer
start from a blank box.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

README.md

@@ -158,7 +158,10 @@ Question            id (doubles as the URL path), name, description,
                     (Iconify name, e.g. lucide:star), requirements[],
                     resource
       Requirement   name, label, type, optional, multiple, placeholder,
-                    accept (file), resource + id_field (select options)
+                    accept (file), resource + id_field (select options),
+                    bind {field, param, resource} (load this field's
+                    value from a resource whenever the named sibling
+                    changes - {param} templates into a url source's path)
       ResourceSpec  source (kv | gitea_starred | gitea_org_repos | url),
                     key, public, requires_group, transitions[{from, to, label}],
                     jq (reshape filter)

questions/develop-proposal.yaml

@@ -43,7 +43,8 @@ alternatives:
             optional: true
       - name: The change
         description: >
-          Pick the page you're changing — or name a new file's path if
+          Pick the page you're changing and its current content loads
+          below, ready to edit in place — or name a new file's path if
           the proposal creates one.
         requirements:
           - name: target_path
@@ -68,3 +69,12 @@ alternatives:
           - name: proposed_yaml
             label: Proposed file content (complete YAML)
             type: textarea
+            bind:
+              field: target_path
+              param: path
+              resource:
+                public: true
+                source:
+                  kind: url
+                  url: https://project.uhhm.no/api/v1/repos/uhhm/questions/contents/{path}?ref=main
+                jq: ".content | @base64d"