Switches to native Go build info for versioning

Simplifies the version command and Makefile by removing manual ldflags injection. The application now relies entirely on Go's built-in VCS metadata embedding to extract version, commit, and date information, ensuring accurate reporting across all build methods.

Makefile

@@ -1,24 +1,14 @@
-.PHONY: build install test clean version
+.PHONY: build install test coverage clean
 
-# Get version from git tag, fallback to dev
-VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-COMMIT ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
-DATE ?= $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
-
-# Ldflags to inject version information
-LDFLAGS := -ldflags "-X git.membo.co.uk/dtomlinson/gitlocal/cmd.Version=$(VERSION) \
-                      -X git.membo.co.uk/dtomlinson/gitlocal/cmd.Commit=$(COMMIT) \
-                      -X git.membo.co.uk/dtomlinson/gitlocal/cmd.Date=$(DATE)"
-
-# Build the binary
+# Build the binary (Go automatically embeds VCS info)
 build:
-	@echo "Building gitlocal $(VERSION)..."
-	go build $(LDFLAGS) -o gitlocal .
+	@echo "Building gitlocal..."
+	go build -o gitlocal .
 
 # Install to $GOPATH/bin
 install:
-	@echo "Installing gitlocal $(VERSION)..."
-	go install $(LDFLAGS) .
+	@echo "Installing gitlocal..."
+	go install .
 
 # Run tests
 test:
@@ -35,9 +25,3 @@ coverage:
 clean:
 	@echo "Cleaning..."
 	rm -f gitlocal coverage.out
-
-# Show version that would be built
-version:
-	@echo "Version: $(VERSION)"
-	@echo "Commit:  $(COMMIT)"
-	@echo "Date:    $(DATE)"