fix: correct final whole-branch review findings for 0.6.6 English content

- TRAVELLING spelling: fix TRAVELING -> TRAVELLING in travel-panel.component.html
  to match UK spelling used everywhere else (world/hunting/combat stores + API
  error messages)
- Grenzwacht -> Border Watch: fix stale German faction display name in
  reputation-display, reputation.service/controller, turn-in.service specs,
  and the vertical-slice seed spec test title
- Suedtor von Graufurt -> Graufurt South Gate: fix stale ASCII-transliterated
  German location name in hunting.service.spec.ts
- Aschenfelder(n) -> Ashen Fields: fix stale German location name/description
  in top-bar.component.spec.ts and context-panel.component.spec.ts (key
  identifiers left untouched)
- Fix 7 test titles still describing translated error messages as "German"
  across world/hunting/inventory/combat store specs
- README: update demo location names from German to their current English
  names (Graufurt South Gate, Burned Road)
- item-rarity.enum.ts: fix now-false comment claiming rarity labels are
  German; the frontend RARITY_LABELS map is English

Pure literal-string/comment substitutions; no keys, ids, or logic changed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ACkMEDYiwtcfchqKkiUJNX

apps/web/src/app/shared/reputation-display/reputation-display.component.spec.ts

@@ -14,7 +14,7 @@ describe('ReputationDisplayComponent', () => {
   it('renders the faction name and rank', async () => {
     const fixture = await setup({
       factionKey: 'border-guard',
-      factionName: 'Grenzwacht',
+      factionName: 'Border Watch',
       reputation: 320,
       rank: 'KNOWN',
       rankLabel: 'Known',
@@ -22,14 +22,14 @@ describe('ReputationDisplayComponent', () => {
     });
     const element = fixture.nativeElement as HTMLElement;
 
-    expect(element.textContent).toContain('Grenzwacht');
+    expect(element.textContent).toContain('Border Watch');
     expect(element.textContent).toContain('Known');
   });
 
   it('shows current reputation against the next threshold', async () => {
     const fixture = await setup({
       factionKey: 'border-guard',
-      factionName: 'Grenzwacht',
+      factionName: 'Border Watch',
       reputation: 320,
       rank: 'KNOWN',
       rankLabel: 'Known',
@@ -44,7 +44,7 @@ describe('ReputationDisplayComponent', () => {
   it('renders a progress fraction between 0 and 100', async () => {
     const fixture = await setup({
       factionKey: 'border-guard',
-      factionName: 'Grenzwacht',
+      factionName: 'Border Watch',
       reputation: 320,
       rank: 'KNOWN',
       rankLabel: 'Known',
@@ -61,7 +61,7 @@ describe('ReputationDisplayComponent', () => {
   it('handles the top rank with no next threshold without crashing or showing a bogus progress bar', async () => {
     const fixture = await setup({
       factionKey: 'border-guard',
-      factionName: 'Grenzwacht',
+      factionName: 'Border Watch',
       reputation: 1500,
       rank: 'ESTEEMED',
       rankLabel: 'Esteemed',