style: format web/src with oxfmt defaults (via vp fmt)

One-time mechanical sweep, isolated from any functional change.
- oxfmt defaults: double quotes, semicolons, 2-space indent, LF,
  printWidth 100, trailing commas, bracket spacing, arrow parens.
- vite.config.ts gains an fmt.ignorePatterns block for web/static:
  vendored/minified assets (htmx.min.js, compiled css) must never
  be reformatted.
- Verified: rebuild after the sweep produces byte-identical JS/CSS
  bundles; only sourcemaps changed (they embed sourcesContent).

web/src/theme.ts

@@ -68,9 +68,7 @@ const applyTheme = (theme: string): void => {
 
 // Load theme from localStorage or use default
 const loadTheme = (): void => {
-  const storedTheme = localStorage.getItem(
-    THEME_STORAGE_KEY,
-  ) as ThemeType | null;
+  const storedTheme = localStorage.getItem(THEME_STORAGE_KEY) as ThemeType | null;
   const theme = storedTheme || DEFAULT_THEME;
   applyTheme(theme);
 };
@@ -145,9 +143,7 @@ const updateThemeIndicators = (): void => {
 const revealCurrentTheme = (mode: string): void => {
   const match = document.body.className.match(/theme-([\w-]+)/);
   const current = match ? match[1] : DEFAULT_THEME;
-  const btn = document.querySelector<HTMLElement>(
-    `.theme-btn[data-theme="${current}"]`,
-  );
+  const btn = document.querySelector<HTMLElement>(`.theme-btn[data-theme="${current}"]`);
   if (btn && btn.dataset.mode === mode) {
     btn.scrollIntoView({ block: "nearest" });
   }
@@ -160,12 +156,9 @@ const initializeTheme = (): void => {
   updateThemeIndicators();
 
   // Set theme select value to current theme
-  const themeSelect = document.getElementById(
-    "theme-select",
-  ) as HTMLSelectElement;
+  const themeSelect = document.getElementById("theme-select") as HTMLSelectElement;
   if (themeSelect) {
-    const currentTheme =
-      localStorage.getItem(THEME_STORAGE_KEY) || DEFAULT_THEME;
+    const currentTheme = localStorage.getItem(THEME_STORAGE_KEY) || DEFAULT_THEME;
     themeSelect.value = currentTheme;
   }
 
@@ -205,11 +198,7 @@ const applyWoodPaneling = (paneling: WoodPanelingType): void => {
   if (!container || !body) return;
 
   // Remove all wood background classes from container
-  container.classList.remove(
-    "bg-wood-light",
-    "bg-wood-dark",
-    "bg-wood-mahogany",
-  );
+  container.classList.remove("bg-wood-light", "bg-wood-dark", "bg-wood-mahogany");
   container.removeAttribute("data-wood");
 
   // Remove from body
@@ -231,9 +220,7 @@ const applyWoodPaneling = (paneling: WoodPanelingType): void => {
 
 // Load wood paneling from localStorage on page load
 const loadWoodPaneling = (): void => {
-  const stored = localStorage.getItem(
-    WOOD_STORAGE_KEY,
-  ) as WoodPanelingType | null;
+  const stored = localStorage.getItem(WOOD_STORAGE_KEY) as WoodPanelingType | null;
   if (stored) {
     applyWoodPaneling(stored);
   } else {