build(tok): add test-new and cover-new Makefile targets for Round 2 packages

Add convenience targets for faster iteration on the packages ported
in this session:

  make test-new   — runs only the new packages with -race (3-6s)
  make cover-new  — shows coverage for new packages only

Packages covered: internal/compress, internal/extract, internal/tracking

Usage:
  make test-new           # fast local iteration on new code
  make cover-new          # check coverage on new code before pushing
  make test-race          # full test suite (CI-recommended)

Author: Patel230

Makefile

@@ -27,8 +27,8 @@ GOVULNCHECK := $(GOBIN_DIR)/govulncheck
 # ---------------------------------------------------------------------------
 # Phony declarations (alphabetical).
 # ---------------------------------------------------------------------------
-.PHONY: all bench build ci clean cover fmt help lint lint-fix \
-        security test test-10x test-race tidy version vet
+.PHONY: all bench build ci clean cover cover-new fmt help lint lint-fix \
+        security test test-10x test-new test-race tidy version vet
 
 # ---------------------------------------------------------------------------
 # Default target.
@@ -53,12 +53,18 @@ test-race: ## Run unit tests with the race detector.
 test-10x: ## Run tests 10 times to surface flakes.
 	go test ./... -race -count=10 -timeout=600s
 
+test-new: ## Run only the Round 2 rtk/caveman ported packages (fast iteration).
+	go test -race -count=1 -timeout=60s ./internal/compress/... ./internal/extract/... ./internal/tracking/...
+
 cover: ## Generate a coverage report (coverage.out + coverage.html).
 	go test ./... -race -coverprofile=coverage.out -covermode=atomic -timeout=180s
 	@go tool cover -func=coverage.out | grep "^total:"
 	@go tool cover -html=coverage.out -o coverage.html
 	@echo "Coverage report: coverage.html"
 
+cover-new: ## Coverage report for Round 2 rtk/caveman ported packages only.
+	go test -cover -timeout=30s ./internal/compress/... ./internal/extract/... ./internal/tracking/...
+
 bench: ## Run benchmarks.
 	go test ./... -bench=. -benchmem -count=3 -timeout=300s