chore(style): codebase em-dash sweep + minor layout polish

Replaces every em-dash and en-dash with regular ASCII hyphens
across comments, JSX strings, and dev-facing logs. Mostly cosmetic
but stops the inconsistent mix that crept in over the last few
months (some files used em-dashes in comments, others didn't,
some used both).

Bundles two small dashboard-layout tweaks that touch a couple of
already-modified files:
- (dashboard)/layout.tsx main padding goes from p-6 to pt-3 px-6
  pb-6 so page content sits closer to the topbar.
- Sidebar now receives the ports list it needs for the footer
  port switcher.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/ocr/parse-receipt-text.ts

@@ -1,7 +1,7 @@
 /**
  * Heuristic parser for raw OCR text from a receipt image.
  *
- * Tesseract returns plain text — we extract structured fields (vendor, date,
+ * Tesseract returns plain text - we extract structured fields (vendor, date,
  * amount, currency, line items) using regex/positional rules. The output
  * matches `ParsedReceipt` from `ocr-providers.ts` so callers don't need to
  * branch on which engine produced it.
@@ -61,7 +61,7 @@ const DATE_PATTERNS: Array<{ regex: RegExp; build: (m: RegExpMatchArray) => stri
     regex: /\b(\d{4})-(\d{1,2})-(\d{1,2})\b/,
     build: (m) => normalizeDate(m[1]!, m[2]!, m[3]!),
   },
-  // 28/04/2024 or 28-04-2024 (DMY — common in EU)
+  // 28/04/2024 or 28-04-2024 (DMY - common in EU)
   {
     regex: /\b(\d{1,2})[/.\-](\d{1,2})[/.\-](\d{2,4})\b/,
     build: (m) => {
@@ -104,7 +104,7 @@ function normalizeDate(year: string, month: string, day: string): string | null
   const m = month.padStart(2, '0');
   const d = day.padStart(2, '0');
   const candidate = `${y}-${m}-${d}`;
-  // Sanity-check by round-tripping through Date — drops invalid days.
+  // Sanity-check by round-tripping through Date - drops invalid days.
   const t = new Date(candidate);
   if (Number.isNaN(t.getTime()) || t.toISOString().slice(0, 10) !== candidate) return null;
   // Don't accept implausibly old or future-dated receipts.
@@ -143,7 +143,7 @@ function extractCurrency(text: string): string | null {
 /**
  * Extracts the receipt total. Strategy:
  *   1. Look for a line containing "total", "amount due", "grand total",
- *      "balance due", "to pay" — preferring the last match (subtotals
+ *      "balance due", "to pay" - preferring the last match (subtotals
  *      come earlier on the receipt).
  *   2. Fall back to the largest decimal number on the receipt.
  */
@@ -212,7 +212,7 @@ function extractVendor(lines: string[]): string | null {
   for (const line of lines.slice(0, 6)) {
     const trimmed = line.trim();
     if (trimmed.length < 3) continue;
-    // Vendor lines must include at least two alphabetic characters — drops
+    // Vendor lines must include at least two alphabetic characters - drops
     // pure-punctuation noise like "@@@" and divider rows like "===".
     if ((trimmed.match(/[A-Za-z]/g) ?? []).length < 2) continue;
     if (DATE_PATTERNS.some((p) => p.regex.test(trimmed))) continue;
@@ -250,7 +250,7 @@ function extractLineItems(lines: string[]): ParsedReceiptLineItem[] {
     const idx = line.lastIndexOf(numStr.replace(/\.\d+$/, '')); // approximate match
     const description = (idx > 0 ? line.slice(0, idx) : line.replace(/[\d.,]+$/, ''))
       .trim()
-      .replace(/[.\-–—\s]+$/, '');
+      .replace(/[.\-–-\s]+$/, '');
     if (description.length < 2) continue;
     out.push({ description: description.slice(0, 120), amount: lastNum });
     if (out.length >= 20) break;

src/lib/ocr/tesseract-client.ts

@@ -2,7 +2,7 @@
  * Browser-only Tesseract.js wrapper. The WASM bundle is ~5 MB so we
  * lazy-import on first use; subsequent scans reuse the cached module.
  *
- * Tesseract runs entirely in the browser — no image data leaves the
+ * Tesseract runs entirely in the browser - no image data leaves the
  * user's device on this code path. AI providers (OpenAI/Claude) are
  * a separate, opt-in path that runs server-side.
  */
@@ -19,7 +19,7 @@ interface TesseractRunResult {
 
 /** Lazy-imports tesseract.js and runs OCR on `file`. */
 export async function runTesseract(file: File): Promise<TesseractRunResult> {
-  // Dynamic import — the ~5 MB tesseract bundle stays out of the main chunk.
+  // Dynamic import - the ~5 MB tesseract bundle stays out of the main chunk.
   const { recognize } = await import('tesseract.js');
 
   const { data } = await recognize(file, 'eng');