feat: Phase 1 - Core API server with authentication

- Added database schema for users, api_keys, sync_state, change_log, and sync_config
- Implemented API key generation and validation with bcrypt hashing
- Created Chi-based REST API server with endpoints for:
  - Task CRUD operations (create, read, update, delete)
  - Task actions (complete, start, stop)
  - Tag management (list, add, remove)
  - Projects listing
  - Health check endpoint
- Added middleware for authentication and CORS
- Implemented change log tracking with triggers (key:value format)
- Added configurable change log retention (default 30 days)
- Created server CLI commands (opal server start, opal server keygen)
- Dependencies added: golang.org/x/crypto/bcrypt, github.com/go-chi/chi/v5

opal-task/go.mod

@@ -4,11 +4,13 @@ go 1.25.5
 
 require (
 	github.com/fatih/color v1.18.0
+	github.com/go-chi/chi/v5 v5.2.3
 	github.com/google/uuid v1.6.0
 	github.com/jedib0t/go-pretty/v6 v6.7.8
 	github.com/mattn/go-sqlite3 v1.14.33
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/viper v1.21.0
+	golang.org/x/crypto v0.46.0
 )
 
 require (
@@ -27,6 +29,6 @@ require (
 	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/sys v0.30.0 // indirect
-	golang.org/x/text v0.28.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
 )