feat(api): CRUD расписания/каналов + тест-отправка + история проверок

Task 5 Фазы 3: GET/PUT /schedule (дефолт при отсутствии строки, валидация
interval>=60), POST/GET/DELETE /channels (секрет шифруется Cipher, никогда
не возвращается в ответах), POST /channels/{cid}/test через узкий
TestSender-интерфейс (200/502 без утечки секрета), GET /domains/{did}/history
(сначала GetDomain для project-scoping, затем ListCheckRuns — иначе IDOR
через check_runs, который сам по себе не scoped по project).

Добавлены store.GetDomain (обёртка над существующим sqlc-запросом) и
store.ListCheckRuns (новый запрос + sqlc regen) для поддержки истории.

internal/api/api.go

@@ -85,6 +85,8 @@ type API struct {
 	Reg      ProviderRegistry
 	Auth     AuthStore
 	Sessions SessionManager
+	Schedule ScheduleStore
+	Dispatch TestSender
 }
 
 func NewRouter(a *API) http.Handler {
@@ -114,6 +116,18 @@ func NewRouter(a *API) http.Handler {
 				r.Post("/apply", a.handleApply)
 				r.Patch("/", a.handleSetDomainTemplate)
 				r.Delete("/", a.handleDeleteDomain)
+				r.Get("/history", a.handleDomainHistory)
+			})
+		})
+
+		r.Get("/schedule", a.handleGetSchedule)
+		r.Put("/schedule", a.handlePutSchedule)
+		r.Route("/channels", func(r chi.Router) {
+			r.Post("/", a.handleCreateChannel)
+			r.Get("/", a.handleListChannels)
+			r.Route("/{cid}", func(r chi.Router) {
+				r.Delete("/", a.handleDeleteChannel)
+				r.Post("/test", a.handleTestChannel)
 			})
 		})
 

internal/api/schedule_handlers.go

@@ -0,0 +1,276 @@
+package api
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5"
+
+	"github.com/vasyakrg/dns-autoresolver/internal/store"
+)
+
+// ScheduleStore is the persistence surface the schedule/channels/history
+// handlers depend on. *store.Store satisfies it directly via its thin
+// wrapper methods (see internal/store/tenant.go, internal/store/loader.go);
+// tests can supply their own mock.
+type ScheduleStore interface {
+	GetSchedule(ctx context.Context, projectID uuid.UUID) (store.Schedule, error)
+	UpsertSchedule(ctx context.Context, projectID uuid.UUID, interval int32, enabled bool) (store.Schedule, error)
+
+	CreateChannel(ctx context.Context, projectID uuid.UUID, ctype string, config json.RawMessage, secretEnc string) (store.Channel, error)
+	ListChannels(ctx context.Context, projectID uuid.UUID) ([]store.Channel, error)
+	GetChannel(ctx context.Context, id, projectID uuid.UUID) (store.Channel, error)
+	DeleteChannel(ctx context.Context, id, projectID uuid.UUID) error
+
+	// GetDomain verifies domainID belongs to projectID — required before
+	// ListCheckRuns, which is not itself scoped by project.
+	GetDomain(ctx context.Context, id, projectID uuid.UUID) (store.Domain, error)
+	ListCheckRuns(ctx context.Context, domainID uuid.UUID) ([]store.CheckRun, error)
+}
+
+// TestSender sends a one-off test notification through a single
+// notification channel (POST /channels/{cid}/test). It's a narrow surface
+// deliberately decoupled from notify.Dispatcher (which fans a single event
+// out to every enabled channel of a project by project ID, not a single
+// channel by ID) — cmd/server wiring (Task 6) supplies a concrete adapter
+// over internal/notify's Notifiers; tests supply a mock.
+type TestSender interface {
+	SendTest(ctx context.Context, channelType string, config json.RawMessage, secret string) error
+}
+
+const minScheduleIntervalSeconds = 60
+
+// defaultScheduleResponse is what GET /schedule returns when the project has
+// never created a schedule row (store.GetSchedule returns pgx.ErrNoRows).
+var defaultScheduleResponse = scheduleResponse{IntervalSeconds: 3600, Enabled: false}
+
+type scheduleRequest struct {
+	IntervalSeconds int32 `json:"intervalSeconds"`
+	Enabled         bool  `json:"enabled"`
+}
+
+type scheduleResponse struct {
+	IntervalSeconds int32      `json:"intervalSeconds"`
+	Enabled         bool       `json:"enabled"`
+	LastRunAt       *time.Time `json:"lastRunAt,omitempty"`
+}
+
+func toScheduleResponse(s store.Schedule) scheduleResponse {
+	return scheduleResponse{IntervalSeconds: s.IntervalSeconds, Enabled: s.Enabled, LastRunAt: s.LastRunAt}
+}
+
+// --- schedule ---
+
+func (a *API) handleGetSchedule(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	sc, err := a.Schedule.GetSchedule(r.Context(), pid)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			writeJSON(w, http.StatusOK, defaultScheduleResponse)
+			return
+		}
+		log.Printf("api: get schedule failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	writeJSON(w, http.StatusOK, toScheduleResponse(sc))
+}
+
+func (a *API) handlePutSchedule(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	var req scheduleRequest
+	if !decodeBody(w, r, &req) {
+		return
+	}
+	if req.IntervalSeconds < minScheduleIntervalSeconds {
+		writeErr(w, http.StatusBadRequest, "intervalSeconds must be >= 60")
+		return
+	}
+	sc, err := a.Schedule.UpsertSchedule(r.Context(), pid, req.IntervalSeconds, req.Enabled)
+	if err != nil {
+		log.Printf("api: upsert schedule failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	writeJSON(w, http.StatusOK, toScheduleResponse(sc))
+}
+
+// --- channels ---
+
+type channelRequest struct {
+	Type   string          `json:"type"`
+	Config json.RawMessage `json:"config"`
+	Secret string          `json:"secret"`
+}
+
+// channelResponse deliberately excludes the secret (plaintext or encrypted) —
+// bot tokens/webhook signing keys must never reach an API response.
+type channelResponse struct {
+	ID      string          `json:"id"`
+	Type    string          `json:"type"`
+	Config  json.RawMessage `json:"config"`
+	Enabled bool            `json:"enabled"`
+}
+
+func toChannelResponse(c store.Channel) channelResponse {
+	return channelResponse{ID: c.ID.String(), Type: c.Type, Config: c.Config, Enabled: c.Enabled}
+}
+
+func (a *API) handleCreateChannel(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	var req channelRequest
+	if !decodeBody(w, r, &req) {
+		return
+	}
+	if req.Type == "" {
+		writeErr(w, http.StatusBadRequest, "type is required")
+		return
+	}
+	if len(req.Config) == 0 {
+		req.Config = json.RawMessage("{}")
+	}
+	secretEnc := ""
+	if req.Secret != "" {
+		enc, err := a.Cipher.Encrypt([]byte(req.Secret))
+		if err != nil {
+			log.Printf("api: encrypt channel secret failed: %v", err)
+			writeErr(w, http.StatusInternalServerError, "internal error")
+			return
+		}
+		secretEnc = enc
+	}
+	ch, err := a.Schedule.CreateChannel(r.Context(), pid, req.Type, req.Config, secretEnc)
+	if err != nil {
+		log.Printf("api: create channel failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	writeJSON(w, http.StatusCreated, toChannelResponse(ch))
+}
+
+func (a *API) handleListChannels(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	chs, err := a.Schedule.ListChannels(r.Context(), pid)
+	if err != nil {
+		log.Printf("api: list channels failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	resp := make([]channelResponse, 0, len(chs))
+	for _, c := range chs {
+		resp = append(resp, toChannelResponse(c))
+	}
+	writeJSON(w, http.StatusOK, resp)
+}
+
+func (a *API) handleDeleteChannel(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	cid, err := uuid.Parse(chi.URLParam(r, "cid"))
+	if err != nil {
+		writeErr(w, http.StatusBadRequest, "invalid channel id")
+		return
+	}
+	if err := a.Schedule.DeleteChannel(r.Context(), cid, pid); err != nil {
+		log.Printf("api: delete channel failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// handleTestChannel sends a one-off test notification through a single
+// channel so a user can verify their bot_token/chat_id or webhook URL work
+// before enabling the schedule. The channel's secret is decrypted only in
+// memory to make the outbound call — it's never echoed back, and a failure
+// from the remote channel (bad token, unreachable webhook) is reported as
+// 502 without including any secret material in the error body.
+func (a *API) handleTestChannel(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	cid, err := uuid.Parse(chi.URLParam(r, "cid"))
+	if err != nil {
+		writeErr(w, http.StatusBadRequest, "invalid channel id")
+		return
+	}
+	ch, err := a.Schedule.GetChannel(r.Context(), cid, pid)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, "channel not found")
+		return
+	}
+	secret := ""
+	if ch.SecretEnc != "" {
+		dec, err := a.Cipher.Decrypt(ch.SecretEnc)
+		if err != nil {
+			log.Printf("api: decrypt channel secret failed: %v", err)
+			writeErr(w, http.StatusInternalServerError, "internal error")
+			return
+		}
+		secret = string(dec)
+	}
+	if err := a.Dispatch.SendTest(r.Context(), ch.Type, ch.Config, secret); err != nil {
+		log.Printf("api: test channel %s failed: %v", cid, err)
+		writeErr(w, http.StatusBadGateway, "channel test failed")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
+}
+
+// --- history ---
+
+type checkRunResponse struct {
+	ID        string          `json:"id"`
+	CreatedAt time.Time       `json:"createdAt"`
+	Result    json.RawMessage `json:"result"`
+}
+
+func toCheckRunResponse(c store.CheckRun) checkRunResponse {
+	return checkRunResponse{ID: c.ID.String(), CreatedAt: c.CreatedAt, Result: c.Result}
+}
+
+// handleDomainHistory returns the most recent check_runs for a domain.
+// check_runs.domain_id has no project scoping of its own, so this handler
+// must first confirm the domain belongs to the caller's project (GetDomain)
+// before listing its history — otherwise a caller could enumerate another
+// tenant's domain IDs to read their check history (IDOR).
+func (a *API) handleDomainHistory(w http.ResponseWriter, r *http.Request) {
+	// pid is guaranteed present and owned by the caller — RequireProjectAccess
+	// validated it before this handler ever runs.
+	pid, _ := projectIDFrom(r.Context())
+	did, err := uuid.Parse(chi.URLParam(r, "did"))
+	if err != nil {
+		writeErr(w, http.StatusBadRequest, "invalid domain id")
+		return
+	}
+	if _, err := a.Schedule.GetDomain(r.Context(), did, pid); err != nil {
+		writeErr(w, http.StatusNotFound, "domain not found")
+		return
+	}
+	runs, err := a.Schedule.ListCheckRuns(r.Context(), did)
+	if err != nil {
+		log.Printf("api: list check runs failed: %v", err)
+		writeErr(w, http.StatusInternalServerError, "internal error")
+		return
+	}
+	resp := make([]checkRunResponse, 0, len(runs))
+	for _, cr := range runs {
+		resp = append(resp, toCheckRunResponse(cr))
+	}
+	writeJSON(w, http.StatusOK, resp)
+}

internal/api/schedule_test.go

@@ -0,0 +1,433 @@
+package api
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5"
+
+	"github.com/vasyakrg/dns-autoresolver/internal/store"
+)
+
+// --- mock ScheduleStore ---
+
+type mockScheduleStore struct {
+	schedule    store.Schedule
+	scheduleErr error
+
+	upsertCalled   bool
+	upsertInterval int32
+	upsertEnabled  bool
+	upsertResult   store.Schedule
+	upsertErr      error
+
+	channels        map[uuid.UUID]store.Channel
+	createChannelIn []struct {
+		ctype     string
+		config    json.RawMessage
+		secretEnc string
+	}
+	createChannelErr    error
+	deleteChannelCalled bool
+	deletedChannelID    uuid.UUID
+	deleteChannelErr    error
+
+	domains     map[uuid.UUID]store.Domain
+	checkRuns   map[uuid.UUID][]store.CheckRun
+	listRunsErr error
+}
+
+func newMockScheduleStore() *mockScheduleStore {
+	return &mockScheduleStore{
+		channels:  map[uuid.UUID]store.Channel{},
+		domains:   map[uuid.UUID]store.Domain{},
+		checkRuns: map[uuid.UUID][]store.CheckRun{},
+	}
+}
+
+func (m *mockScheduleStore) GetSchedule(context.Context, uuid.UUID) (store.Schedule, error) {
+	if m.scheduleErr != nil {
+		return store.Schedule{}, m.scheduleErr
+	}
+	return m.schedule, nil
+}
+
+func (m *mockScheduleStore) UpsertSchedule(_ context.Context, projectID uuid.UUID, interval int32, enabled bool) (store.Schedule, error) {
+	m.upsertCalled = true
+	m.upsertInterval = interval
+	m.upsertEnabled = enabled
+	if m.upsertErr != nil {
+		return store.Schedule{}, m.upsertErr
+	}
+	if m.upsertResult.ID != uuid.Nil {
+		return m.upsertResult, nil
+	}
+	return store.Schedule{ID: uuid.New(), ProjectID: projectID, IntervalSeconds: interval, Enabled: enabled}, nil
+}
+
+func (m *mockScheduleStore) CreateChannel(_ context.Context, projectID uuid.UUID, ctype string, config json.RawMessage, secretEnc string) (store.Channel, error) {
+	m.createChannelIn = append(m.createChannelIn, struct {
+		ctype     string
+		config    json.RawMessage
+		secretEnc string
+	}{ctype, config, secretEnc})
+	if m.createChannelErr != nil {
+		return store.Channel{}, m.createChannelErr
+	}
+	ch := store.Channel{ID: uuid.New(), ProjectID: projectID, Type: ctype, Config: config, SecretEnc: secretEnc, Enabled: true}
+	m.channels[ch.ID] = ch
+	return ch, nil
+}
+
+func (m *mockScheduleStore) ListChannels(context.Context, uuid.UUID) ([]store.Channel, error) {
+	out := make([]store.Channel, 0, len(m.channels))
+	for _, c := range m.channels {
+		out = append(out, c)
+	}
+	return out, nil
+}
+
+func (m *mockScheduleStore) GetChannel(_ context.Context, id, _ uuid.UUID) (store.Channel, error) {
+	c, ok := m.channels[id]
+	if !ok {
+		return store.Channel{}, errors.New("channel not found")
+	}
+	return c, nil
+}
+
+func (m *mockScheduleStore) DeleteChannel(_ context.Context, id, _ uuid.UUID) error {
+	m.deleteChannelCalled = true
+	m.deletedChannelID = id
+	if m.deleteChannelErr != nil {
+		return m.deleteChannelErr
+	}
+	delete(m.channels, id)
+	return nil
+}
+
+func (m *mockScheduleStore) GetDomain(_ context.Context, id, _ uuid.UUID) (store.Domain, error) {
+	d, ok := m.domains[id]
+	if !ok {
+		return store.Domain{}, errors.New("domain not found")
+	}
+	return d, nil
+}
+
+func (m *mockScheduleStore) ListCheckRuns(_ context.Context, domainID uuid.UUID) ([]store.CheckRun, error) {
+	if m.listRunsErr != nil {
+		return nil, m.listRunsErr
+	}
+	return m.checkRuns[domainID], nil
+}
+
+// --- mock TestSender ---
+
+type mockTestSender struct {
+	err          error
+	calledType   string
+	calledConfig json.RawMessage
+	calledSecret string
+	called       bool
+}
+
+func (m *mockTestSender) SendTest(_ context.Context, channelType string, config json.RawMessage, secret string) error {
+	m.called = true
+	m.calledType = channelType
+	m.calledConfig = config
+	m.calledSecret = secret
+	return m.err
+}
+
+// newScheduleTestAPI wires a fixed authenticated user who owns whatever
+// project id is requested (alwaysOwnedAuthStore/alwaysValidSessions, see
+// middleware_test.go) — these tests exercise schedule/channels/history
+// behavior past the RequireAuth/RequireProjectAccess boundary.
+func newScheduleTestAPI() (*API, *mockScheduleStore, *mockTestSender) {
+	ms := newMockScheduleStore()
+	mts := &mockTestSender{}
+	a := &API{
+		Schedule: ms, Dispatch: mts, Cipher: mockCipher{},
+		Auth: alwaysOwnedAuthStore(), Sessions: alwaysValidSessions(uuid.New()),
+	}
+	return a, ms, mts
+}
+
+// --- schedule ---
+
+func TestGetSchedule_DefaultWhenNoRow(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	ms.scheduleErr = pgx.ErrNoRows
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/schedule", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	var resp scheduleResponse
+	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+		t.Fatal(err)
+	}
+	if resp.IntervalSeconds != 3600 || resp.Enabled != false {
+		t.Fatalf("expected default {3600,false}, got %+v", resp)
+	}
+}
+
+func TestGetSchedule_Existing(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	ms.schedule = store.Schedule{ID: uuid.New(), IntervalSeconds: 120, Enabled: true}
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/schedule", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	var resp scheduleResponse
+	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+		t.Fatal(err)
+	}
+	if resp.IntervalSeconds != 120 || !resp.Enabled {
+		t.Fatalf("expected {120,true}, got %+v", resp)
+	}
+}
+
+func TestPutSchedule_RejectsIntervalBelow60(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	body := `{"intervalSeconds":59,"enabled":true}`
+	req := requestWithSessionCookie(http.MethodPut, "/api/v1/projects/"+testPID+"/schedule", strings.NewReader(body))
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400 for interval<60, got %d body %s", w.Code, w.Body.String())
+	}
+	if ms.upsertCalled {
+		t.Fatal("UpsertSchedule must not be called when validation fails")
+	}
+}
+
+func TestPutSchedule_Success(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	body := `{"intervalSeconds":300,"enabled":true}`
+	req := requestWithSessionCookie(http.MethodPut, "/api/v1/projects/"+testPID+"/schedule", strings.NewReader(body))
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	if !ms.upsertCalled || ms.upsertInterval != 300 || !ms.upsertEnabled {
+		t.Fatalf("expected UpsertSchedule(300,true), got called=%v interval=%d enabled=%v", ms.upsertCalled, ms.upsertInterval, ms.upsertEnabled)
+	}
+}
+
+// --- channels ---
+
+func TestCreateChannel_EncryptsSecretAndOmitsFromResponse(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	body := `{"type":"telegram","config":{"chat_id":"123"},"secret":"super-bot-token"}`
+	req := requestWithSessionCookie(http.MethodPost, "/api/v1/projects/"+testPID+"/channels", strings.NewReader(body))
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusCreated {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	if strings.Contains(w.Body.String(), "super-bot-token") {
+		t.Fatalf("response leaks plaintext secret: %s", w.Body.String())
+	}
+	if len(ms.createChannelIn) != 1 {
+		t.Fatalf("expected 1 CreateChannel call, got %d", len(ms.createChannelIn))
+	}
+	got := ms.createChannelIn[0]
+	if got.secretEnc == "" || got.secretEnc == "super-bot-token" || !strings.Contains(got.secretEnc, "super-bot-token") {
+		// mockCipher.Encrypt wraps as ENC(...) — assert it's the *encrypted* form, not the raw plaintext passed unchanged.
+		t.Fatalf("expected secret to be passed through cipher.Encrypt, got secretEnc=%q", got.secretEnc)
+	}
+	if got.secretEnc == "super-bot-token" {
+		t.Fatalf("secret was stored unencrypted")
+	}
+
+	var resp channelResponse
+	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+		t.Fatal(err)
+	}
+	if resp.Type != "telegram" || resp.ID == "" {
+		t.Fatalf("unexpected response: %+v", resp)
+	}
+}
+
+func TestListChannels_NoSecrets(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	ms.channels[uuid.New()] = store.Channel{ID: uuid.New(), Type: "webhook", Config: json.RawMessage(`{"url":"https://example.com"}`), SecretEnc: "ENC(top-secret)", Enabled: true}
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/channels", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	if strings.Contains(w.Body.String(), "top-secret") || strings.Contains(w.Body.String(), "secretEnc") {
+		t.Fatalf("channel list leaks secret: %s", w.Body.String())
+	}
+}
+
+func TestDeleteChannel(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	cid := uuid.New()
+	ms.channels[cid] = store.Channel{ID: cid, Type: "webhook"}
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodDelete, "/api/v1/projects/"+testPID+"/channels/"+cid.String(), nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusNoContent {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	if !ms.deleteChannelCalled || ms.deletedChannelID != cid {
+		t.Fatalf("expected DeleteChannel(%s), called=%v got=%s", cid, ms.deleteChannelCalled, ms.deletedChannelID)
+	}
+}
+
+func TestDeleteChannel_InvalidUUID(t *testing.T) {
+	a, _, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodDelete, "/api/v1/projects/"+testPID+"/channels/not-a-uuid", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400 for bad channel uuid, got %d", w.Code)
+	}
+}
+
+func TestTestChannel_Success(t *testing.T) {
+	a, ms, mts := newScheduleTestAPI()
+	cid := uuid.New()
+	ms.channels[cid] = store.Channel{ID: cid, Type: "telegram", Config: json.RawMessage(`{"chat_id":"1"}`), SecretEnc: "ENC(bot-token)"}
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodPost, "/api/v1/projects/"+testPID+"/channels/"+cid.String()+"/test", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	if !mts.called || mts.calledType != "telegram" || mts.calledSecret != "bot-token" {
+		t.Fatalf("expected SendTest(telegram,...,bot-token), got called=%v type=%s secret=%s", mts.called, mts.calledType, mts.calledSecret)
+	}
+}
+
+func TestTestChannel_SenderError_Returns502WithoutSecret(t *testing.T) {
+	a, ms, mts := newScheduleTestAPI()
+	cid := uuid.New()
+	ms.channels[cid] = store.Channel{ID: cid, Type: "telegram", Config: json.RawMessage(`{"chat_id":"1"}`), SecretEnc: "ENC(bot-token)"}
+	mts.err = errors.New("telegram: status 401 Unauthorized (token=bot-token)")
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodPost, "/api/v1/projects/"+testPID+"/channels/"+cid.String()+"/test", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusBadGateway {
+		t.Fatalf("expected 502 on channel test failure, got %d body %s", w.Code, w.Body.String())
+	}
+	if strings.Contains(w.Body.String(), "bot-token") {
+		t.Fatalf("error response leaks secret: %s", w.Body.String())
+	}
+}
+
+func TestTestChannel_UnknownChannel_Returns404(t *testing.T) {
+	a, _, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodPost, "/api/v1/projects/"+testPID+"/channels/"+uuid.New().String()+"/test", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusNotFound {
+		t.Fatalf("expected 404 for unknown channel, got %d", w.Code)
+	}
+}
+
+// --- history ---
+
+func TestDomainHistory_List(t *testing.T) {
+	a, ms, _ := newScheduleTestAPI()
+	did := uuid.New()
+	ms.domains[did] = store.Domain{ID: did}
+	ms.checkRuns[did] = []store.CheckRun{
+		{ID: uuid.New(), DomainID: did, Result: json.RawMessage(`{"updates":1,"prunes":0}`)},
+		{ID: uuid.New(), DomainID: did, Result: json.RawMessage(`{"updates":0,"prunes":0}`)},
+	}
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/domains/"+did.String()+"/history", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", w.Code, w.Body.String())
+	}
+	var resp []checkRunResponse
+	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+		t.Fatal(err)
+	}
+	if len(resp) != 2 {
+		t.Fatalf("expected 2 history entries, got %d", len(resp))
+	}
+}
+
+func TestDomainHistory_InvalidUUID(t *testing.T) {
+	a, _, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/domains/not-a-uuid/history", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400 for bad domain uuid, got %d", w.Code)
+	}
+}
+
+// TestDomainHistory_ForeignDomain_Returns404 is the IDOR guard for history:
+// check_runs.domain_id has no project scoping of its own, so the handler
+// must verify domain ownership via GetDomain before calling ListCheckRuns —
+// a domain id the mock doesn't know about (i.e. not in this project) must
+// 404 rather than fall through to an unscoped history lookup.
+func TestDomainHistory_ForeignDomain_Returns404(t *testing.T) {
+	a, _, _ := newScheduleTestAPI()
+	router := NewRouter(a)
+
+	did := uuid.New() // never registered in ms.domains
+	req := requestWithSessionCookie(http.MethodGet, "/api/v1/projects/"+testPID+"/domains/"+did.String()+"/history", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusNotFound {
+		t.Fatalf("expected 404 for a domain not owned by this project, got %d body %s", w.Code, w.Body.String())
+	}
+}

internal/store/db/check_runs.sql.go

@@ -34,3 +34,32 @@ func (q *Queries) CreateCheckRun(ctx context.Context, arg CreateCheckRunParams)
 	)
 	return i, err
 }
+
+const listCheckRuns = `-- name: ListCheckRuns :many
+SELECT id, domain_id, result, created_at FROM check_runs WHERE domain_id = $1 ORDER BY created_at DESC LIMIT 50
+`
+
+func (q *Queries) ListCheckRuns(ctx context.Context, domainID uuid.UUID) ([]CheckRun, error) {
+	rows, err := q.db.Query(ctx, listCheckRuns, domainID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []CheckRun
+	for rows.Next() {
+		var i CheckRun
+		if err := rows.Scan(
+			&i.ID,
+			&i.DomainID,
+			&i.Result,
+			&i.CreatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}

internal/store/loader.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"time"
 
 	"github.com/google/uuid"
 
@@ -51,6 +52,40 @@ func (s *Store) SaveCheckRun(ctx context.Context, domainID uuid.UUID, cs diff.Ch
 	return err
 }
 
+// CheckRun is a provider-neutral summary of a past check/apply run, returned
+// by ListCheckRuns for the domain history endpoint (Фаза 3).
+type CheckRun struct {
+	ID        uuid.UUID
+	DomainID  uuid.UUID
+	Result    json.RawMessage
+	CreatedAt time.Time
+}
+
+func checkRunFromDB(c db.CheckRun) CheckRun {
+	return CheckRun{
+		ID:        c.ID,
+		DomainID:  c.DomainID,
+		Result:    json.RawMessage(c.Result),
+		CreatedAt: c.CreatedAt.Time,
+	}
+}
+
+// ListCheckRuns returns the most recent check_runs rows for a domain (newest
+// first, capped at 50). Not scoped by project itself — callers must verify
+// the domain belongs to the caller's project first (e.g. via GetDomain)
+// since check_runs only references domain_id.
+func (s *Store) ListCheckRuns(ctx context.Context, domainID uuid.UUID) ([]CheckRun, error) {
+	rows, err := s.q.ListCheckRuns(ctx, domainID)
+	if err != nil {
+		return nil, err
+	}
+	out := make([]CheckRun, 0, len(rows))
+	for _, r := range rows {
+		out = append(out, checkRunFromDB(r))
+	}
+	return out, nil
+}
+
 // compile-time interface checks
 var _ service.Loader = (*Store)(nil)
 var _ service.Recorder = (*Store)(nil)

internal/store/queries/check_runs.sql

@@ -2,3 +2,6 @@
 INSERT INTO check_runs (id, domain_id, result)
 VALUES ($1, $2, $3)
 RETURNING *;
+
+-- name: ListCheckRuns :many
+SELECT * FROM check_runs WHERE domain_id = $1 ORDER BY created_at DESC LIMIT 50;

internal/store/tenant.go

@@ -176,6 +176,17 @@ func (s *Store) DeleteDomain(ctx context.Context, id, projectID uuid.UUID) error
 	return s.q.DeleteDomain(ctx, db.DeleteDomainParams{ID: id, ProjectID: projectID})
 }
 
+// GetDomain is a scoped lookup used to verify a domain belongs to projectID
+// before it's referenced elsewhere (e.g. history — check_runs isn't itself
+// scoped by project, so callers must confirm domain ownership first).
+func (s *Store) GetDomain(ctx context.Context, id, projectID uuid.UUID) (Domain, error) {
+	d, err := s.q.GetDomain(ctx, db.GetDomainParams{ID: id, ProjectID: projectID})
+	if err != nil {
+		return Domain{}, err
+	}
+	return domainFromDB(d), nil
+}
+
 // ImportDomains creates one domain per zone inside a single transaction: if
 // any zone fails to be created, the whole batch is rolled back so callers
 // never observe a partially-imported set of domains.