feat: load previous dev log as context when cmd_continue recovers

skills/kugetsu/scripts/kugetsu-session.sh

@@ -261,6 +261,27 @@ create_session() {
     echo "$new_session_id"
 }
 
+load_session_context() {
+    local opencode_session_id="$1"
+    local sanitized_id=$(echo "$opencode_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
+    local log_file="$LOGS_DIR/dev-$sanitized_id.log"
+    
+    if [ ! -f "$log_file" ]; then
+        echo ""
+        return
+    fi
+    
+    local context_summary="Previous session context (work was in progress, session may have crashed or been interrupted):\n\n"
+    context_summary+=$(tail -100 "$log_file" 2>/dev/null | while IFS= read -r line; do
+        line=$(strip_ansi_codes "$line")
+        echo "  $line"
+    done | head -50)
+    
+    context_summary+="\n\nPlease review this context and continue the work appropriately."
+    
+    echo "$context_summary"
+}
+
 build_dev_agent_message() {
     local issue_ref="$1"
     local user_message="${2:-}"
@@ -379,9 +400,10 @@ cmd_start() {
     
     cd "$worktree_path"
     local sanitized_id=$(echo "$new_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
-    local msg_file="$worktree_path/.kugetsu-msg.txt"
+    local msg_file="$LOGS_DIR/msg-$sanitized_id.txt"
     printf '%s' "$dev_message" > "$msg_file"
     nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$new_session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
+    rm -f "$msg_file"
     
     echo "Session started for '$issue_ref': $new_session_id"
     echo "Worktree: $worktree_path"
@@ -432,9 +454,16 @@ cmd_continue() {
     
     if [ -z "$worktree_path" ] || [ ! -d "$worktree_path" ]; then
         echo "Warning: Worktree is missing for '$session_name'. Recovering..." >&2
+        local previous_context=$(load_session_context "$opencode_session_id")
         rm -f "$session_path"
         remove_issue_from_index "$session_name"
-        echo "Calling cmd_start to create new session and worktree..." >&2
+        if [ -n "$previous_context" ]; then
+            message="$previous_context"
+            if [ -n "$message" ]; then
+                message="$message"$'\n\n'"Additional user message: $message"
+            fi
+        fi
+        echo "Calling cmd_start to create new session and worktree with context..." >&2
         cmd_start "$session_name" "$message"
         return $?
     fi
@@ -445,9 +474,10 @@ cmd_continue() {
     
     cd "$worktree_path"
     local sanitized_id=$(echo "$opencode_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
-    local msg_file="$worktree_path/.kugetsu-msg.txt"
+    local msg_file="$LOGS_DIR/msg-$sanitized_id.txt"
     printf '%s' "$message" > "$msg_file"
     nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
+    rm -f "$msg_file"
 }
 
 cmd_list() {