build: add version management and build tooling

- Add scripts/bump-version.sh for coordinated version updates
  - Updates version in package.json, Cargo.toml, tauri.conf.json, and Info.plist
  - Ensures version consistency across all project files
  - Provides clear instructions for tagging and releasing

- Add Makefile for common build tasks
  - Simplifies development workflow
  - Standardizes build commands across platforms

Author: 123vivekr

Makefile

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+# Makefile for Claudia - Homebrew distribution
+
+# Variables
+VERSION := $(shell grep '^version' src-tauri/Cargo.toml | head -1 | cut -d'"' -f2)
+DIST_NAME := Claudia-$(VERSION)-darwin
+BUILD_DIR := src-tauri/target/universal-apple-darwin/release/bundle
+
+# Phony targets
+.PHONY: all clean build release cask test sign notarize help deps
+
+# Default target
+all: build
+
+# Help target
+help:
+	@echo "Claudia Homebrew Build System"
+	@echo "=============================="
+	@echo "Available targets:"
+	@echo "  make build     - Build the application for macOS (creates DMG)"
+	@echo "  make release   - Create a release DMG for Homebrew"
+	@echo "  make cask      - Update the Homebrew cask with latest SHA"
+	@echo "  make test      - Test the Homebrew cask locally"
+	@echo "  make sign      - Sign the application (requires Developer ID)"
+	@echo "  make notarize  - Notarize the application (requires Apple account)"
+	@echo "  make clean     - Clean build artifacts"
+	@echo "  make help      - Show this help message"
+
+# Clean build artifacts
+clean:
+	@echo "Cleaning build artifacts..."
+	rm -rf dist
+	rm -rf src-tauri/target/release/bundle
+	rm -rf src-tauri/target/universal-apple-darwin/release/bundle
+	rm -f *.dmg
+
+# Install dependencies
+deps:
+	@echo "Installing dependencies..."
+	bun install
+	cd src-tauri && cargo fetch
+
+# Build the application
+build: deps
+	@echo "Building Claudia v$(VERSION)..."
+	@echo "Note: Use './sign.sh' to build a universal binary with proper signing"
+	@echo "Building for current architecture only..."
+	bun run build
+	cd src-tauri && cargo tauri build
+
+# Create release DMG
+release: build
+	@echo "Creating release DMG..."
+	@if [ -f "$(BUILD_DIR)/dmg/Claudia.dmg" ]; then \
+		cp "$(BUILD_DIR)/dmg/Claudia.dmg" "Claudia-$(VERSION).dmg"; \
+		echo "DMG created: Claudia-$(VERSION).dmg"; \
+		echo "SHA256: $$(shasum -a 256 Claudia-$(VERSION).dmg | awk '{print $$1}')"; \
+	else \
+		echo "Error: DMG not found. Make sure 'dmg' is in your tauri.conf.json targets."; \
+		exit 1; \
+	fi
+
+# Update cask with current SHA
+cask: release
+	$(eval SHA256 := $(shell shasum -a 256 Claudia-$(VERSION).dmg | awk '{print $$1}'))
+	@echo "Updating cask with SHA256: $(SHA256)"
+	@sed -i '' "s/sha256 \".*\"/sha256 \"$(SHA256)\"/" Casks/claudia.rb
+	@sed -i '' "s/version \".*\"/version \"$(VERSION)\"/" Casks/claudia.rb
+	@echo "Cask updated!"
+
+# Test the cask locally
+test:
+	@echo "Testing Homebrew cask..."
+	export HOMEBREW_NO_AUTO_UPDATE=1 && \
+	export HOMEBREW_NO_INSTALL_FROM_API=1 && \
+	brew install --cask Casks/claudia.rb
+	brew audit --new --cask claudia
+	brew style --fix Casks/claudia.rb
+
+# Sign the application (requires Apple Developer certificate)
+sign:
+	@echo "Signing application..."
+	@echo "Note: This requires a valid Apple Developer ID certificate"
+	codesign --deep --force --verify --verbose --sign "Developer ID Application: YOUR NAME (TEAM_ID)" \
+		--options runtime \
+		--entitlements src-tauri/entitlements.plist \
+		$(BUILD_DIR)/macos/Claudia.app
+
+# Notarize the application (requires Apple Developer account)
+notarize: sign
+	@echo "Notarizing application..."
+	@echo "Creating ZIP for notarization..."
+	cd $(BUILD_DIR)/macos && zip -r Claudia.zip Claudia.app
+	xcrun notarytool submit $(BUILD_DIR)/macos/Claudia.zip \
+		--apple-id "YOUR_APPLE_ID" \
+		--team-id "YOUR_TEAM_ID" \
+		--password "YOUR_APP_PASSWORD" \
+		--wait
+	xcrun stapler staple $(BUILD_DIR)/macos/Claudia.app

scripts/bump-version.sh

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+#!/bin/bash
+
+# Script to bump version across all files
+# Usage: ./scripts/bump-version.sh 1.0.0
+
+set -e
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 <version>"
+    echo "Example: $0 1.0.0"
+    exit 1
+fi
+
+VERSION=$1
+
+echo "Bumping version to $VERSION..."
+
+# Update package.json
+sed -i.bak "s/\"version\": \".*\"/\"version\": \"$VERSION\"/" package.json && rm package.json.bak
+
+# Update Cargo.toml
+sed -i.bak "s/^version = \".*\"/version = \"$VERSION\"/" src-tauri/Cargo.toml && rm src-tauri/Cargo.toml.bak
+
+# Update tauri.conf.json
+sed -i.bak "s/\"version\": \".*\"/\"version\": \"$VERSION\"/" src-tauri/tauri.conf.json && rm src-tauri/tauri.conf.json.bak
+
+# Update Info.plist
+sed -i.bak "s/<string>.*<\/string><!-- VERSION -->/<string>$VERSION<\/string><!-- VERSION -->/" src-tauri/Info.plist && rm src-tauri/Info.plist.bak
+
+echo "✅ Version bumped to $VERSION in all files"
+echo ""
+echo "Next steps:"
+echo "1. Review the changes: git diff"
+echo "2. Commit: git commit -am \"chore: bump version to v$VERSION\""
+echo "3. Tag: git tag -a v$VERSION -m \"Release v$VERSION\""
+echo "4. Push: git push && git push --tags"