feat: books.toml -> books.ini, multi-language (add Latin dialect), config-scoped citation display

books.ini with [en]/[pl]/[la]; parseBooks reads INI (bible drops go-toml).
Latin dialect resolves EF citations (Eccli->Sirach, Apoc->Revelation, Luc...);
sigla_style gains 'latin'. Reading citations now DISPLAY in the configured
sigla (FormatRef(SiglaLang)), not raw English. One-shot books.toml->books.ini
user migration (go-toml now config-only). Web settings editor -> books.ini.

3 files changed, 15 insertions, 15 deletions

diff --git a/internal/web/server.go b/internal/web/server.go
index a586534..2674802 100644
--- a/internal/web/server.go
+++ b/internal/web/server.go
@@ -62,7 +62,7 @@ func (s *server) apply(cfg config.Config, tbl *bible.BookTable) {
 // query parameters; it is never mutated -- /settings applies changes to a
 // live, mutable copy held by server, which every handler reads per request.
 func NewServer(cfg config.Config) http.Handler {
-	tbl, _ := bible.LoadBookTable(config.UserBooksTOML())
+	tbl, _ := bible.LoadBookTable(config.UserBooksINI())
 	s := &server{cfg: cfg, tbl: tbl, bm: bookmarks.Open()}
 
 	mux := http.NewServeMux()
@@ -719,7 +719,7 @@ func themeCSSHandler(cfg config.Config) http.HandlerFunc {
 // settingsData drives templates/settings.html.
 type settingsData struct {
 	Cfg            config.Config
-	Books          string       // current books.toml text (user override, else the embedded default)
+	Books          string       // current books.ini text (user override, else the embedded default)
 	ThemeOpts      []themeOpt   // for the web_theme <select>
 	VersionOpts    []versionOpt // all five, Checked if in Cfg.Versions
 	WebVersionOpts []versionOpt // all five, Checked if in Cfg.WebVersions
@@ -768,10 +768,10 @@ func newSettingsData(cfg config.Config, books, errMsg string, saved bool) settin
 }
 
 func currentBooksText() string {
-	if b := config.UserBooksTOML(); len(b) > 0 {
+	if b := config.UserBooksINI(); len(b) > 0 {
 		return string(b)
 	}
-	return string(bible.DefaultBooksTOML())
+	return string(bible.DefaultBooksINI())
 }
 
 // settingsGet renders the settings form for the live config.
@@ -785,7 +785,7 @@ func settingsGet(s *server) http.HandlerFunc {
 	}
 }
 
-// settingsPost validates and persists the submitted settings + books.toml, then
+// settingsPost validates and persists the submitted settings + books.ini, then
 // applies them to the running server and redirects (PRG). On a validation error
 // it re-renders the form with the message and the user's edits, HTTP 200.
 func settingsPost(s *server) http.HandlerFunc {
@@ -819,12 +819,12 @@ func settingsPost(s *server) http.HandlerFunc {
 			renderSettingsError(w, cfg, booksText, err.Error())
 			return
 		}
-		// Validate books.toml (parse via the same loader the app uses).
+		// Validate books.ini (parse via the same loader the app uses).
 		var newTbl *bible.BookTable
 		if strings.TrimSpace(booksText) != "" {
 			t, berr := bible.LoadBookTable([]byte(booksText))
 			if berr != nil {
-				renderSettingsError(w, cfg, booksText, "books.toml: "+berr.Error())
+				renderSettingsError(w, cfg, booksText, "books.ini: "+berr.Error())
 				return
 			}
 			newTbl = t
@@ -835,7 +835,7 @@ func settingsPost(s *server) http.HandlerFunc {
 			renderSettingsError(w, cfg, booksText, "saving config: "+err.Error())
 			return
 		}
-		// Only write books.toml when the editor actually carried content, so a
+		// Only write books.ini when the editor actually carried content, so a
 		// submit with an empty/absent books field never clobbers an existing
 		// override (the form always pre-fills the textarea).
 		if strings.TrimSpace(booksText) != "" {
diff --git a/internal/web/server_test.go b/internal/web/server_test.go
index 284a454..12542e5 100644
--- a/internal/web/server_test.go
+++ b/internal/web/server_test.go
@@ -561,19 +561,19 @@ func TestSettingsPostInvalidBooks(t *testing.T) {
 	post.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	rec := httptest.NewRecorder()
 	srv.ServeHTTP(rec, post)
-	if rec.Code != 200 || !strings.Contains(rec.Body.String(), "books.toml") {
+	if rec.Code != 200 || !strings.Contains(rec.Body.String(), "books.ini") {
 		t.Errorf("invalid books should re-render with an error, got %d", rec.Code)
 	}
 }
 
-func bibleDefaultBooks() []byte { return bible.DefaultBooksTOML() }
+func bibleDefaultBooks() []byte { return bible.DefaultBooksINI() }
 
 // TestSettingsPostEmptyBooksPreservesFile guards that a submit without a books
-// field never clobbers an existing books.toml override.
+// field never clobbers an existing books.ini override.
 func TestSettingsPostEmptyBooksPreservesFile(t *testing.T) {
 	dir := t.TempDir()
 	t.Setenv("LECTIO_CONFIG", filepath.Join(dir, "config.toml"))
-	booksPath := filepath.Join(dir, "books.toml")
+	booksPath := filepath.Join(dir, "books.ini")
 	original := []byte("[en]\nJohn = [\"Jn\", \"John\"]\n")
 	if err := os.WriteFile(booksPath, original, 0o644); err != nil {
 		t.Fatal(err)
@@ -594,7 +594,7 @@ func TestSettingsPostEmptyBooksPreservesFile(t *testing.T) {
 		t.Fatalf("status %d", rec.Code)
 	}
 	if got, _ := os.ReadFile(booksPath); string(got) != string(original) {
-		t.Errorf("empty books submit clobbered books.toml: got %q", got)
+		t.Errorf("empty books submit clobbered books.ini: got %q", got)
 	}
 }
 
diff --git a/internal/web/templates/settings.html b/internal/web/templates/settings.html
index be08e6d..e2ee39e 100644
--- a/internal/web/templates/settings.html
+++ b/internal/web/templates/settings.html
@@ -1,5 +1,5 @@
 {{/* settings.html — lectio-web /settings page: a form for every config
-     setting plus a raw books.toml editor. A plain POST form (no htmx) --
+     setting plus a raw books.ini editor. A plain POST form (no htmx) --
      saving redirects (PRG) back here with ?saved=1. On a validation error
      the form re-renders with the submitted values and an inline message
      instead of redirecting. Self-contained and theme-aware, like index.html. */}}
@@ -100,7 +100,7 @@
       <input type="text" name="pager" value="{{.Cfg.Pager}}">
     </label>
 
-    <label>books.toml
+    <label>books.ini
       <textarea name="books" rows="20">{{.Books}}</textarea>
     </label>