v0.0.42: markdown rendering in TUI messages

- **bold**, *italic*, \`code\` rendered with ratatui styles
- # headers, > blockquotes, - bullet lists
- Multi-line messages split and indented per line
- Code spans: cyan bold, headers: white bold, quotes: gray italic
- No external dependency (custom md_to_spans parser)
- tui-markdown had ratatui version mismatch, built our own

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

warzone/Cargo.lock

@@ -2956,7 +2956,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-client"
-version = "0.0.40"
+version = "0.0.42"
 dependencies = [
  "anyhow",
  "argon2",
@@ -2989,7 +2989,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-mule"
-version = "0.0.40"
+version = "0.0.42"
 dependencies = [
  "anyhow",
  "clap",
@@ -2998,7 +2998,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-protocol"
-version = "0.0.40"
+version = "0.0.42"
 dependencies = [
  "base64",
  "bincode",
@@ -3023,7 +3023,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-server"
-version = "0.0.40"
+version = "0.0.42"
 dependencies = [
  "anyhow",
  "axum",
@@ -3054,7 +3054,7 @@ dependencies = [
 
 [[package]]
 name = "warzone-wasm"
-version = "0.0.40"
+version = "0.0.42"
 dependencies = [
  "base64",
  "bincode",