chore: remove dead code (unused atom constants, orphaned handler)

- SourceMeal/TypeMeal (AtomSource/AtomType): leftover from the removed
  MealToAtom conversion (b2d8fc4); zero references anywhere else.
- HandleGetSourceOptions: never registered as a route, and its own
  test comment already noted "may fail if template not found, which
  is acceptable" -- the settings-source-options template it rendered
  doesn't exist in web/templates/ at all. Fully unreachable/broken,
  not just unused.

go build/vet/test all clean, no behavior change for anything reachable.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VTUSAEKfsPc6WGDq45yPHD

3 files changed, 0 insertions, 66 deletions

diff --git a/internal/handlers/handlers_test.go b/internal/handlers/handlers_test.go
index 1f66378..d16c7cf 100644
--- a/internal/handlers/handlers_test.go
+++ b/internal/handlers/handlers_test.go
@@ -1343,48 +1343,6 @@ func TestHandleToggleSourceConfig_MissingFields(t *testing.T) {
 	}
 }
 
-func TestHandleGetSourceOptions(t *testing.T) {
-	h, cleanup := setupTestHandler(t)
-	defer cleanup()
-
-	// Create source configs
-	_ = h.store.SyncSourceConfigs("trello", "board", []models.SourceConfig{
-		{Source: "trello", ItemType: "board", ItemID: "board1", ItemName: "Board 1"},
-		{Source: "trello", ItemType: "board", ItemID: "board2", ItemName: "Board 2"},
-	})
-
-	req := httptest.NewRequest("GET", "/settings/source/trello", nil)
-	rctx := chi.NewRouteContext()
-	rctx.URLParams.Add("source", "trello")
-	req = req.WithContext(context.WithValue(req.Context(), chi.RouteCtxKey, rctx))
-
-	w := httptest.NewRecorder()
-
-	h.HandleGetSourceOptions(w, req)
-
-	// May fail if template not found, which is acceptable in test
-	if w.Code != http.StatusOK && w.Code != http.StatusInternalServerError {
-		t.Errorf("Expected status 200 or 500, got %d", w.Code)
-	}
-}
-
-func TestHandleGetSourceOptions_MissingSource(t *testing.T) {
-	h, cleanup := setupTestHandler(t)
-	defer cleanup()
-
-	req := httptest.NewRequest("GET", "/settings/source/", nil)
-	rctx := chi.NewRouteContext()
-	req = req.WithContext(context.WithValue(req.Context(), chi.RouteCtxKey, rctx))
-
-	w := httptest.NewRecorder()
-
-	h.HandleGetSourceOptions(w, req)
-
-	if w.Code != http.StatusBadRequest {
-		t.Errorf("Expected status 400, got %d", w.Code)
-	}
-}
-
 // mockTrelloClientWithBoards returns mock boards
 type mockTrelloClientWithBoards struct {
 	mockTrelloClient
diff --git a/internal/handlers/settings.go b/internal/handlers/settings.go
index dc345db..28988b1 100644
--- a/internal/handlers/settings.go
+++ b/internal/handlers/settings.go
@@ -154,28 +154,6 @@ func (h *Handler) HandleToggleSourceConfig(w http.ResponseWriter, r *http.Reques
 	json.NewEncoder(w).Encode(map[string]bool{"enabled": enabled})
 }
 
-// HandleGetSourceOptions returns available options for a source (HTMX partial)
-func (h *Handler) HandleGetSourceOptions(w http.ResponseWriter, r *http.Request) {
-	source := chi.URLParam(r, "source")
-	if source == "" {
-		JSONError(w, http.StatusBadRequest, "Source required", nil)
-		return
-	}
-
-	configs, err := h.store.GetSourceConfigsBySource(source)
-	if err != nil {
-		JSONError(w, http.StatusInternalServerError, "Failed to load configs", err)
-		return
-	}
-
-	data := struct {
-		Source  string
-		Configs []models.SourceConfig
-	}{source, configs}
-
-	HTMLResponse(w, h.renderer, "settings-source-options", data)
-}
-
 // HandleToggleFeature toggles a feature flag
 func (h *Handler) HandleToggleFeature(w http.ResponseWriter, r *http.Request) {
 	name, ok := requireFormValue(w, r, "name")
diff --git a/internal/models/atom.go b/internal/models/atom.go
index 9f40de6..21d30a6 100644
--- a/internal/models/atom.go
+++ b/internal/models/atom.go
@@ -10,7 +10,6 @@ type AtomSource string
 
 const (
 	SourceTrello      AtomSource = "trello"
-	SourceMeal        AtomSource = "plantoeat"
 	SourceGTasks      AtomSource = "gtasks"
 	SourceClaudomator AtomSource = "claudomator"
 	SourceDoot        AtomSource = "doot"
@@ -20,7 +19,6 @@ type AtomType string
 
 const (
 	TypeTask AtomType = "task"
-	TypeMeal AtomType = "meal"
 )
 
 // Atom represents a unified unit of work or information