fix: multiple fixes + pg-query e2e passed

upload.go:
- Update → Patch (MergeFrom) to avoid resourceVersion conflict when operator
  modifies Function between Get() and Update()

terraform provider v0.1.1:
- trigger_resource.go: trToModel returns StringNull() for empty schedule
  (fixes 'provider produced inconsistent result' for http triggers)
- main.go: bump version to 0.1.1

examples/pg-query:
- handler.py: fix column name started_at → created_at (matches migrations/001)
- main.tf: pin provider to ~> 0.1.1

.gitignore: add terraform state, lock, .terraform/, handler.zip

doc/errors/log.md: documented all 5 errors from this session:
- resourceVersion conflict → use Patch
- terraform inconsistent result for schedule → StringNull
- terraform import not implemented → delete+recreate workaround
- wrong column name → check migrations before writing handlers
- Deployment not restarting after image rebuild → rollout restart / TODO: restartedAt annotation

doc/progress.md: terraform apply e2e ✅

terraform/provider/internal/resources/trigger_resource.go

@@ -172,13 +172,19 @@ func (r *TriggerResource) Delete(ctx context.Context, req resource.DeleteRequest
 }
 
 // trToModel конвертирует API-ответ → state модель.
+// schedule: возвращаем Null если пустая строка — terraform требует null для Optional-полей,
+// которые не заданы в конфиге (иначе план: null → apply: "" → "inconsistent result").
 func trToModel(tr *client.TriggerResponse) TriggerModel {
+	schedule := types.StringNull()
+	if tr.Schedule != "" {
+		schedule = types.StringValue(tr.Schedule)
+	}
 	return TriggerModel{
 		Namespace:   types.StringValue(tr.Namespace),
 		Name:        types.StringValue(tr.Name),
 		Type:        types.StringValue(tr.Type),
 		FunctionRef: types.StringValue(tr.FunctionRef),
-		Schedule:    types.StringValue(tr.Schedule),
+		Schedule:    schedule,
 		Active:      types.BoolValue(tr.Active),
 		URL:         types.StringValue(tr.URL),
 	}

terraform/provider/main.go

@@ -12,8 +12,8 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/providerserver"
 )
 
-// version задаётся ldflags при сборке: -ldflags "-X main.version=0.1.0"
-var version string = "0.1.0"
+// version задаётся ldflags при сборке: -ldflags "-X main.version=0.1.1"
+var version string = "0.1.1"
 
 func main() {
 	opts := providerserver.ServeOpts{