fix: fix: disinto init re-run silently drops HUMAN_TOKEN when token already exists (#275)

Apply delete-then-recreate pattern for human token (matching admin token in PR #274).
Forge/Forgejo only returns sha1 at creation time; listing returns no sha1, causing
HUMAN_TOKEN to be silently empty on re-runs when token name already exists.

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

bin/disinto

@@ -785,6 +785,19 @@ setup_forge() {
   # Get or create human user token
   local human_token
   if curl -sf --max-time 5 "${forge_url}/api/v1/users/${human_user}" >/dev/null 2>&1; then
+    # Delete existing human token if present (token sha1 is only returned at creation time)
+    local existing_human_token_id
+    existing_human_token_id=$(curl -sf \
+      -u "${human_user}:${human_pass}" \
+      "${forge_url}/api/v1/users/${human_user}/tokens" 2>/dev/null \
+      | jq -r '.[] | select(.name == "disinto-human-token") | .id') || existing_human_token_id=""
+    if [ -n "$existing_human_token_id" ]; then
+      curl -sf -X DELETE \
+        -u "${human_user}:${human_pass}" \
+        "${forge_url}/api/v1/users/${human_user}/tokens/${existing_human_token_id}" >/dev/null 2>&1 || true
+    fi
+
+    # Create human token (fresh, so sha1 is returned)
     human_token=$(curl -sf -X POST \
       -u "${human_user}:${human_pass}" \
       -H "Content-Type: application/json" \
@@ -792,14 +805,6 @@ setup_forge() {
       -d '{"name":"disinto-human-token","scopes":["all"]}' 2>/dev/null \
       | jq -r '.sha1 // empty') || human_token=""
 
-    if [ -z "$human_token" ]; then
-      # Token might already exist — try listing
-      human_token=$(curl -sf \
-        -u "${human_user}:${human_pass}" \
-        "${forge_url}/api/v1/users/${human_user}/tokens" 2>/dev/null \
-        | jq -r '.[0].sha1 // empty') || human_token=""
-    fi
-
     if [ -n "$human_token" ]; then
       # Store human token in .env
       if grep -q '^HUMAN_TOKEN=' "$env_file" 2>/dev/null; then