v0.0.15: unalias, admin alias removal, /reply, web version fix

Aliases:
- /unalias — remove your own alias
- /admin-unalias <alias> <password> — admin removes any alias
- Admin password via WARZONE_ADMIN_PASSWORD env var (default: "admin")
- POST /v1/alias/unregister + POST /v1/alias/admin-remove

Reply:
- /r or /reply — switches peer to whoever last DM'd you
- lastDmPeer tracked on both web and TUI
- Then type normally to reply

Web:
- Version bumped to 0.0.15 (was stuck at 0.0.10)
- WASM rebuilt with latest protocol

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/Cargo.toml

@@ -9,7 +9,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.0.14"
+version = "0.0.15"
 edition = "2021"
 license = "MIT"
 rust-version = "1.75"