sync upstream, verify patches, update memory

fix: update acceptance tests for upstream API changes

fix: update hook-paths test for upstream $CLAUDE_PROJECT_DIR adoption

make memory targets worktree-safe — auto-detect project slug

make memory targets worktree-safe — auto-detect project slug

add make setup target for initial project setup

track remaining runtime state files

consolidate to single root .gitignore — remove .claude-flow/.gitignore

track .claude-flow/data/ (except graph-state.json at 195MB)

unignore memory, data storage, and runtime state files

add Makefile with memory symlink management targets

import memory files from predecessor projects

add project memory files to repo (.claude/memory/)

ADR-0056: implemented — unified backend + branch tools (patch.115)

ADR-0056: MCP server unified backend — proposed