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/services/email-threads.service.ts

@@ -91,7 +91,7 @@ export async function getThread(threadId: string, portId: string) {
 export async function ingestMessage(portId: string, parsedEmail: ParsedEmail) {
   let threadId: string | null = null;
 
-  // Step 1: Message-ID chain — check inReplyTo and references headers
+  // Step 1: Message-ID chain - check inReplyTo and references headers
   const referencedIds = [
     ...(parsedEmail.inReplyTo ? [parsedEmail.inReplyTo] : []),
     ...(parsedEmail.references ?? []),
@@ -104,10 +104,7 @@ export async function ingestMessage(portId: string, parsedEmail: ParsedEmail) {
     if (existingMessage) {
       // Verify thread belongs to this port
       const thread = await db.query.emailThreads.findFirst({
-        where: and(
-          eq(emailThreads.id, existingMessage.threadId),
-          eq(emailThreads.portId, portId),
-        ),
+        where: and(eq(emailThreads.id, existingMessage.threadId), eq(emailThreads.portId, portId)),
       });
       if (thread) {
         threadId = thread.id;
@@ -117,7 +114,10 @@ export async function ingestMessage(portId: string, parsedEmail: ParsedEmail) {
 
   // Step 2: Email address match against client contacts
   if (!threadId) {
-    const fromAddress = parsedEmail.from.replace(/.*<(.+)>/, '$1').trim().toLowerCase();
+    const fromAddress = parsedEmail.from
+      .replace(/.*<(.+)>/, '$1')
+      .trim()
+      .toLowerCase();
 
     const contactRows = await db
       .select({
@@ -168,9 +168,7 @@ export async function ingestMessage(portId: string, parsedEmail: ParsedEmail) {
 
   // Step 3: Subject + sender fuzzy match
   if (!threadId) {
-    const normalizedSubject = parsedEmail.subject
-      .replace(/^(re|fwd|fw):\s*/i, '')
-      .trim();
+    const normalizedSubject = parsedEmail.subject.replace(/^(re|fwd|fw):\s*/i, '').trim();
 
     if (normalizedSubject) {
       const matchingThread = await db.query.emailThreads.findFirst({
@@ -187,7 +185,7 @@ export async function ingestMessage(portId: string, parsedEmail: ParsedEmail) {
     }
   }
 
-  // No thread found — create a new one
+  // No thread found - create a new one
   if (!threadId) {
     const newThreadRows = await db
       .insert(emailThreads)
@@ -276,7 +274,7 @@ export async function syncInbox(accountId: string): Promise<void> {
     logger.info({ accountId, exists: mailbox.exists }, 'IMAP INBOX opened');
 
     // Search for messages since the last sync date
-    // client.search() returns false | number[] — false means nothing found
+    // client.search() returns false | number[] - false means nothing found
     const searchResult = await client.search({ since });
     const uids: number[] = searchResult === false ? [] : searchResult;
 
@@ -291,21 +289,15 @@ export async function syncInbox(accountId: string): Promise<void> {
 
         const parsed = await simpleParser(message.source);
 
-        // Normalise messageId — mailparser returns string | string[] | undefined
+        // Normalise messageId - mailparser returns string | string[] | undefined
         const rawMsgId = parsed.messageId;
         const messageId =
-          rawMsgId == null
-            ? ''
-            : Array.isArray(rawMsgId)
-            ? (rawMsgId[0] ?? '')
-            : rawMsgId;
+          rawMsgId == null ? '' : Array.isArray(rawMsgId) ? (rawMsgId[0] ?? '') : rawMsgId;
 
         const from = parsed.from?.text ?? '';
 
-        // Normalise to/cc — mailparser AddressObject can be an array
-        const resolveAddresses = (
-          field: typeof parsed.to,
-        ): string[] => {
+        // Normalise to/cc - mailparser AddressObject can be an array
+        const resolveAddresses = (field: typeof parsed.to): string[] => {
           if (!field) return [];
           const arr = Array.isArray(field) ? field : [field];
           return arr.flatMap((a) =>
@@ -321,8 +313,8 @@ export async function syncInbox(accountId: string): Promise<void> {
           rawRefs == null
             ? []
             : typeof rawRefs === 'string'
-            ? rawRefs.split(/\s+/).filter(Boolean)
-            : rawRefs;
+              ? rawRefs.split(/\s+/).filter(Boolean)
+              : rawRefs;
 
         await ingestMessage(account.portId, {
           messageId,