feat(go-crm): full auth, routing, middleware, and supporting infra

- Add auth handlers (signup, login, logout, account management) with bcrypt
- Add client, customer, service, scheduling, payment, question, answer handlers
- Add dashboard, monthly report, and lead pipeline pages
- Add UTF-8 middleware to force charset on HTML responses
- Add config package with env-based overrides for DB path, secrets, endpoints
- Add parser package for WhatsApp message ingestion
- Add clean-arch layers: pkg/domain, pkg/repo, pkg/usecase for leads
- Add cmd/migrate utility for DB migrations
- Add Makefile, README, run-tests.sh, and dev scripts
- Update docker-compose.yml with memory limits
- Update .air.toml to exclude DB files and stop on errors
- Update whatsapp-sync dependencies and add src/index.js entrypoint
- Add whatsme standalone WhatsApp reader app (source only)
- Untrack .opencode-sandbox/data/go-crm.db from git history
- Expand root .gitignore: ngrok, tmp dirs, sandbox DBs, compiled binaries

apps/go-crm/.air.toml

@@ -4,20 +4,20 @@ tmp_dir = "tmp"
 [build]
   bin = "./tmp/main"
   cmd = "go build -buildvcs=false -o ./tmp/main ."
-  delay = 1000
-  exclude_dir = ["assets", "tmp", "vendor"]
+  delay = 2000
+  exclude_dir = ["assets", "tmp", "vendor", "data", "node_modules", ".git"]
   exclude_file = []
-  exclude_regex = ["_test.go"]
-  exclude_unchanged = false
+  exclude_regex = ["_test.go", "\\.db$", "\\.db-journal$", "\\.db-shm$", "\\.db-wal$"]
+  exclude_unchanged = true
   follow_symlink = false
   full_screen = false
-  include_dir = []
+  include_dir = ["internal"]
   include_ext = ["go", "templ"]
-  kill_delay = "0s"
+  kill_delay = "2s"
   log = "build-errors.toml"
   send_exit = false
   send_user = false
-  stop_on_error = false
+  stop_on_error = true
 
 [log]
   main_only = false