fix(server): show sane remote URLs for 0.0.0.0 binds (#262)

Closes #261

## Summary

- improve startup remote URL selection when the server binds to
`0.0.0.0`
- print additional reachable remote URLs instead of advertising only the
first external address
- add targeted tests for address ordering and advertisability behavior

## Problem

When CodeNomad was started with `--host 0.0.0.0`, the CLI chose the
first external IPv4 address it discovered and displayed only that one as
the remote URL.

On Windows machines with WSL, Hyper-V, Docker, or other virtual
adapters, that often surfaced a virtual `172.x.x.x` address even though
a more useful LAN address such as `192.168.x.x` was also reachable and
usable from other devices.

That made remote access look broken or confusing even though the server
itself was accessible.

## What changed

- reuse the resolved network-address list for both:
  - primary remote URL selection
  - startup logging of additional reachable URLs
- choose the primary remote URL from the **advertisable** external
addresses instead of any external address
- print `Other Accessible URLs` when multiple useful remote URLs are
available
- avoid hard-coding a preference like `192.168 > 10 > 172`
- suppress link-local `169.254.*` addresses from user-facing advertised
URLs
- add tests covering:
  - stable ordering across RFC1918 address ranges
  - link-local addresses being non-advertisable
  - link-local-first discovery not stealing the primary LAN URL

## Why this approach

This keeps address derivation in the network-address resolver layer and
limits `index.ts` to startup wiring and presentation.

It also fixes the misleading terminal output without redesigning binding
behavior, TLS behavior, or the server API contract.

## Validation

- `npm run typecheck --workspace @neuralnomads/codenomad`
- `npx tsx --test
'.\\src\\server\\__tests__\\network-addresses.test.ts'`

## Notes

- this change is intentionally focused on selection and presentation of
reachable addresses
- it does not attempt a broader virtual-adapter classification policy
beyond suppressing clearly low-value link-local addresses in user-facing
output

---------

Co-authored-by: Shantur Rathore <i@shantur.com>

packages/ui/src/styles/components/remote-access.css

@@ -256,6 +256,55 @@
   cursor: pointer;
 }
 
+.remote-address-disclosure {
+  border: 1px solid var(--border-base);
+  border-radius: 12px;
+  background: var(--surface-primary);
+  overflow: hidden;
+}
+
+.remote-address-disclosure-trigger {
+  width: 100%;
+  min-height: 40px;
+  display: grid;
+  grid-template-columns: 1fr auto 1fr;
+  align-items: center;
+  padding: 8px 12px;
+  border: 0;
+  background: transparent;
+  color: var(--text-primary);
+  cursor: pointer;
+}
+
+.remote-address-disclosure-label {
+  grid-column: 2;
+  justify-self: center;
+  text-align: center;
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.remote-address-disclosure-chevron {
+  grid-column: 3;
+  justify-self: end;
+  width: 16px;
+  height: 16px;
+  color: var(--text-secondary);
+  transition: transform 0.2s ease;
+}
+
+.remote-address-disclosure-chevron.is-expanded {
+  transform: rotate(180deg);
+}
+
+.remote-address-disclosure-content {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 0 10px 10px;
+  border-top: 1px solid var(--border-base);
+}
+
 .remote-qr {
   margin-top: 12px;
   display: flex;

packages/ui/src/styles/components/settings-screen.css

@@ -1,11 +1,12 @@
 .settings-screen-frame {
-  @apply fixed inset-0 z-50 flex items-center justify-center p-4;
+  @apply fixed inset-0 z-50 flex items-center justify-center px-4;
+  padding-block: 5dvh;
 }
 
 /* Override .modal-surface (defined later in panels.css). */
 .modal-surface.settings-screen-shell {
   width: min(1120px, 100%);
-  height: min(88vh, 920px);
+  height: 100%;
   max-height: none;
   display: grid;
   grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
@@ -278,10 +279,25 @@
   font-size: var(--font-size-sm);
 }
 
+.settings-password-summary-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+
+.settings-password-summary-copy {
+  display: flex;
+  flex-direction: column;
+  gap: 0.25rem;
+  min-width: 0;
+}
+
 .settings-password-actions {
   display: flex;
-  justify-content: flex-start;
-  margin-top: 0.75rem;
+  justify-content: flex-end;
+  margin-top: 0;
 }
 
 .settings-form-group {