fix: session ID collision in cmd_start + delegate issue ref extraction

- Fix session ID detection in cmd_start to exclude pm_agent_session_id
  (prevents forked sessions from getting same ID as pm-agent)
- Add extract_issue_ref_from_message function for parsing issue refs
  from short format (git.fbrns.co/user/repo#123) or URLs
- Update cmd_delegate to call cmd_start when issue ref is found
- Pass GITEA_TOKEN to opencode run for API access
- Fixes #81

skills/kugetsu/scripts/kugetsu

@@ -15,6 +15,33 @@ if [ -f "$KUGETSU_DIR/config" ]; then
     source "$KUGETSU_DIR/config"
 fi
 
+extract_issue_ref_from_message() {
+    local message="$1"
+    
+    if [ -z "$message" ]; then
+        echo ""
+        return
+    fi
+    
+    if [[ "$message" =~ ^([a-zA-Z0-9.-]+/[a-zA-Z0-9._-]+/[a-zA-Z0-9._-]+#[0-9]+) ]]; then
+        echo "${BASH_REMATCH[1]}"
+        return
+    fi
+    
+    if [[ "$message" =~ (https?://[a-zA-Z0-9.-]+/[a-zA-Z0-9._-]+/[a-zA-Z0-9._-]+/(issues|pull)/[0-9]+) ]]; then
+        local url="${BASH_REMATCH[1]}"
+        local path=$(echo "$url" | sed 's|https\?://||' | cut -d'/' -f2-)
+        local instance=$(echo "$path" | cut -d'/' -f1)
+        local owner=$(echo "$path" | cut -d'/' -f2)
+        local repo=$(echo "$path" | cut -d'/' -f3)
+        local num=$(echo "$path" | grep -oE '[0-9]+$')
+        echo "${instance}/${owner}/${repo}#${num}"
+        return
+    fi
+    
+    echo ""
+}
+
 count_active_dev_sessions() {
     local count=0
     if [ -d "$SESSIONS_DIR" ]; then
@@ -515,6 +542,13 @@ cmd_delegate() {
         exit 1
     fi
     
+    local issue_ref=$(extract_issue_ref_from_message "$message")
+    
+    if [ -n "$issue_ref" ] && [[ "$issue_ref" =~ \#[0-9]+$ ]]; then
+        cmd_start "$issue_ref" "$message"
+        return
+    fi
+    
     local pm_session=$(get_pm_agent_session_id)
     if [ -z "$pm_session" ] || [ "$pm_session" = "null" ] || [ "$pm_session" = "None" ]; then
         echo "Error: PM agent session not found. Run 'kugetsu init' first." >&2
@@ -523,7 +557,7 @@ cmd_delegate() {
     
     mkdir -p "$LOGS_DIR"
     local log_file="$LOGS_DIR/delegate-$(date +%s).log"
-    nohup sh -c "opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
     disown
     echo "Delegated to PM agent (logged to $(basename "$log_file"))"
 }
@@ -852,7 +886,7 @@ cmd_start() {
     local after_sessions=$(opencode session list 2>/dev/null | grep -oP '^ses_\w+' | sort)
     local new_session_id=""
     while IFS= read -r sess; do
-        if [[ ! "$before_set" =~ \|${sess}\| ]] && [[ "$sess" != "$base_session_id" ]]; then
+        if [[ ! "$before_set" =~ \|${sess}\| ]] && [[ "$sess" != "$base_session_id" ]] && [[ "$sess" != "$pm_agent_session_id" ]]; then
             new_session_id="$sess"
             break
         fi