chore: import upstream snapshot with attribution

scripts/worktree_dev.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+# ~/scripts/task.sh
+
+set -e
+
+ISSUE=$1
+
+if [ -z "$ISSUE" ]; then
+    echo "Usage: task <issue-number>"
+    exit 1
+fi
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+REPO_NAME=$(basename "$REPO_ROOT")
+WORKTREE_PATH="${REPO_ROOT}/../${REPO_NAME}-${ISSUE}"
+BRANCH_NAME="feature/${ISSUE}"
+LOG_FILE="${WORKTREE_PATH}/claude-${ISSUE}.log"
+
+# Create worktree (new branch or existing)
+if [ -d "$WORKTREE_PATH" ]; then
+    echo "🌳 Worktree already exists at $WORKTREE_PATH, reusing..."
+else
+    echo "🌳 Creating worktree..."
+    if git show-ref --verify --quiet "refs/heads/${BRANCH_NAME}"; then
+        git worktree add "$WORKTREE_PATH" "$BRANCH_NAME"
+    else
+        git worktree add "$WORKTREE_PATH" -b "$BRANCH_NAME"
+    fi
+fi
+
+# Kill existing session if any
+tmux kill-session -t "task-${ISSUE}" 2>/dev/null || true
+
+# Create tmux session
+tmux new-session -d -s "task-${ISSUE}" -c "$WORKTREE_PATH"
+tmux set -g mouse on
+
+# Main pane: Claude auto-accept, output to log
+tmux send-keys -t "task-${ISSUE}" "claude \"
+## Task
+Implement the requirements from GitHub issue #${ISSUE}.
+
+If you are working with python, make sure you are creating a virtual environment and installing dependencies (make install_dev && make generate).
+
+## Steps
+1. First, read the issue: gh issue view ${ISSUE}
+2. Understand the requirements and acceptance criteria
+3. Implement the solution
+4. Write/update tests if applicable
+5. Run tests to verify
+6. make sure linting and formatting checks pass (e.g. make py_format, mvn spotless:apply, etc.), for python linting make sure the virtual environment is activated before running linting commands
+7. Commit with message describing the changes referencing issue ${ISSUE}
+8. Push: git push -u origin HEAD
+9. Create PR with a thorough description of the changes: gh pr create --title '#${ISSUE}: \<title\>' --body 'Closes #${ISSUE}'
+10. Summarize what you accomplished
+\"; echo '✅ Claude finished. Closing in 5s...'; sleep 5; tmux kill-session -t task-${ISSUE}" Enter
+
+# Right pane: Live diff (colored)
+tmux split-window -h -t "task-${ISSUE}" -c "$WORKTREE_PATH"
+tmux send-keys -t "task-${ISSUE}" "watch -c -n 2 'echo \"📊 Changes vs HEAD\"; echo; git diff --color=always --stat; echo; echo \"📜 Commits\"; git log --oneline -5 2>/dev/null || echo \"None yet\"'" Enter
+
+# Bottom-left pane: Git status
+tmux select-pane -t "task-${ISSUE}.0"
+tmux split-window -v -t "task-${ISSUE}" -c "$WORKTREE_PATH"
+tmux send-keys -t "task-${ISSUE}" "watch -n 2 'echo \"📝 Status\" && git status -s'" Enter
+
+# Focus on log pane (easier to watch)
+tmux select-pane -t "task-${ISSUE}.1"
+
+echo "🚀 Launching tmux session: task-${ISSUE}"
+echo "   Worktree: $WORKTREE_PATH"
+echo "   Log file: $LOG_FILE"
+
+# Attach to session
+tmux attach -t "task-${ISSUE}"