Bump version to v0.1.8 — Windows playtest fixes

- Fix switchAccount: check signer was set after loginWithNsec before
  returning; fall back to loginWithPubkey on silent failure; always
  navigate to feed after switch to clear stale UI
- Fix profile edit button: hidden in read-only (npub) mode; read-only
  badge shown in profile header to make state visible
- Sidebar: show version number (v0.1.8) below WRYSTR brand, auto-tracked
  from package.json — no more hardcoding
- Support page: increase QR code gap (gap-8 → gap-16) to prevent
  accidentally scanning the wrong address
- ROADMAP: add language/alphabet feed filter to Phase 3 backlog

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ROADMAP.md

@@ -81,6 +81,12 @@ Bugs found during testing are fixed before Phase N+1 starts. A release is cut be
 - Suggest popular accounts and curated starter packs
 - "People followed by people you follow" as a discovery surface
 
+### 14. Language / alphabet feed filter
+- Feature request from Windows playtest (2026-03-11): filter feed to specific languages or scripts
+- Could be client-side: detect script via Unicode block ranges, offer toggle in settings
+- Or server-side: NIP-50 `language` tag support if relays implement it
+- Low effort client-side version: filter by Unicode script (Latin, Cyrillic, CJK, Arabic, etc.)
+
 ### 13. UI polish pass
 - Full design review: note cards, thread view, profile header, modals
 - Target bar: Telegram Desktop — fast, keyboard-navigable, feels native not webby
@@ -110,6 +116,13 @@ Bugs found during testing are fixed before Phase N+1 starts. A release is cut be
 
 ## What's already shipped
 
+### v0.1.8
+- **Fix: account switch broken** — `switchAccount` now checks the signer was actually set before returning; falls back to read-only instead of silently doing nothing; always navigates to feed after switch
+- **Fix: "Not logged in" on profile edit** — edit button hidden when signed in read-only (npub); read-only badge shown in profile header
+- **Sidebar version number** — `v0.1.8` shown below WRYSTR brand, auto-tracked from package.json
+- **Support page QR spacing** — Lightning and Bitcoin QR codes have more breathing room (`gap-16`)
+- **ROADMAP: language filter** added to Phase 3 backlog
+
 ### v0.1.7
 - **Per-account Lightning wallet** — NWC URI stored per-pubkey; switching accounts loads the correct wallet automatically
 - **New account creation in-app** — "Add account" → "New account" tab generates a fresh keypair inline