Initial commit: planning documents

- docs/: Newbilt equipment offer, site requirements, process schematic,
  service rates, project cost overview, PVC supplier list, consultancy overview
- .gitignore excluding local tooling config and runtime state

.gitignore

@@ -0,0 +1,19 @@
+# Claude Flow / Ruflo runtime state
+.claude-flow/
+.swarm/
+*.db
+*.db-shm
+*.db-wal
+*.log
+*.tmp
+
+# Local Claude config (kept out of the repo)
+.claude/
+CLAUDE.md
+
+# Node
+node_modules/
+
+# Env
+.env
+.env.local