chore: remove redundant Makefile and .npmignore, fix .dockerignore

- Makefile: all useful targets duplicate package.json scripts, and
  referenced deleted e2e files. Use npm run instead.
- .npmignore: contained only node_modules/ which npm ignores by default.
- .dockerignore: remove stale paths (manuals/, third_party/, AGENTS.md,
  FUNCTIONAL_ISSUES_BACKLOG.md), add wiki/.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.dockerignore

@@ -11,7 +11,9 @@ node_modules/
 # Agent/Claude metadata (not needed at runtime)
 .agents/
 .claude/
-manuals/
+
+# Documentation (not needed at runtime)
+wiki/
 
 # IDE
 .vscode/
@@ -23,10 +25,3 @@ manuals/
 # OS
 .DS_Store
 Thumbs.db
-
-# Documentation (not needed at runtime)
-third_party/
-FUNCTIONAL_ISSUES_BACKLOG.md
-AGENTS.md
-README.md
-LICENSE

.npmignore

@@ -1,2 +0,0 @@
-# Ignore test files
-node_modules/

Makefile

@@ -1,50 +0,0 @@
-.PHONY: install lint lint-fix test test-jest test-node test-legacy ci docker-ci docker-test docker-lint e2e e2e-up e2e-down
-
-install:
-	@sed -i 's|"generalFunctions": "git+https://[^"]*"|"generalFunctions": "file:./nodes/generalFunctions"|' package.json
-	npm install
-	@git checkout -- package.json 2>/dev/null || true
-
-lint:
-	npx eslint nodes/
-
-lint-fix:
-	npx eslint nodes/ --fix
-
-test-jest:
-	npx jest --forceExit
-
-test-node:
-	node --test \
-		nodes/valve/test/basic/*.test.js \
-		nodes/valve/test/edge/*.test.js \
-		nodes/valve/test/integration/*.test.js \
-		nodes/valveGroupControl/test/basic/*.test.js \
-		nodes/valveGroupControl/test/edge/*.test.js \
-		nodes/valveGroupControl/test/integration/*.test.js
-
-test-legacy:
-	node nodes/machineGroupControl/src/groupcontrol.test.js
-	node nodes/generalFunctions/src/nrmse/errorMetric.test.js
-
-test: test-jest test-node test-legacy
-
-ci: lint test
-
-docker-ci:
-	docker compose run --rm ci
-
-docker-test:
-	docker compose run --rm test
-
-docker-lint:
-	docker compose run --rm lint
-
-e2e:
-	bash test/e2e/run-e2e.sh
-
-e2e-up:
-	docker compose -f docker-compose.e2e.yml up -d --build
-
-e2e-down:
-	docker compose -f docker-compose.e2e.yml down