v0.0.17: fix /r reply in TUI, /p shortcut, /eth, /unalias

TUI fixes:
- /r and /reply now work: tracks last_dm_peer from received messages
- /r switches peer to last DM sender, then type normally
- /p @alias works as shortcut for /peer @alias
- /eth shows Ethereum address in TUI
- /unalias removes your alias

Web fixes:
- /p @alias and /peer @alias resolve and set peer
- /r and /reply work (switch to last DM sender)
- /unalias removes alias
- /admin-unalias <alias> <password> for admin removal
- File download now shows as clickable link (not auto-download)

Server:
- POST /v1/alias/unregister — remove own alias
- POST /v1/alias/admin-remove — admin removes any alias
- WARZONE_ADMIN_PASSWORD env var (default: "admin")

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

warzone/Cargo.lock

@@ -2789,7 +2789,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-client"
-version = "0.0.16"
+version = "0.0.17"
 dependencies = [
  "anyhow",
  "argon2",
@@ -2822,7 +2822,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-mule"
-version = "0.0.16"
+version = "0.0.17"
 dependencies = [
  "anyhow",
  "clap",
@@ -2831,7 +2831,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-protocol"
-version = "0.0.16"
+version = "0.0.17"
 dependencies = [
  "base64",
  "bincode",
@@ -2856,7 +2856,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-server"
-version = "0.0.16"
+version = "0.0.17"
 dependencies = [
  "anyhow",
  "axum",
@@ -2883,7 +2883,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-wasm"
-version = "0.0.16"
+version = "0.0.17"
 dependencies = [
  "base64",
  "bincode",