chore: remove legacy TUI configurator; surface last config gap in GUI (#45)

Audit confirmed the Rich TUI (`meshai --config`) is a strict subset of the
dashboard GUI (covers FEWER sections) and nothing depends on it for bootstrap.
Strip it so the dashboard is the single config surface.

- delete meshai/cli/configurator.py (~1435 lines); cli/__init__ minimal
- main.py: drop --config + run_configurator dispatch (keep --config-file);
  bootstrap log now points to config.example.yaml / the dashboard
- docker-entrypoint.sh: remove the ttyd `meshai --config` block on :7682
  (default-config heredoc + bot exec loop untouched)
- docker-compose.yml + Dockerfile: drop the 7682 port + ttyd install (EXPOSE 8080)
- README / config.py header / config.example.yaml: de-reference the TUI
- drop `rich` from pyproject + requirements (grep-verified unused)

Close the only GUI config gap the audit found:
- Config.tsx weather tab: add openmeteo.url + wttr.url inputs (backend already
  round-trips the nested WeatherConfig dataclasses)

Bootstrap intact: config.example.yaml copy, entrypoint default-config write,
and defaulted Config() when no file exists all remain. `python3 -m meshai`
and `--config-file` unchanged. TS/import validated at Docker build.

Co-authored-by: Matt Johnson <mj@k7zvx.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

work/docker-entrypoint.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 # MeshAI Docker Entrypoint
-# Runs ttyd for web config access and the bot
+# Writes a default config on first run, then runs the bot
 
 export MESHAI_CONFIG="/data/config.yaml"
 export TERM="${TERM:-xterm-256color}"
@@ -10,7 +10,7 @@ if [ ! -f "$MESHAI_CONFIG" ]; then
     mkdir -p /data
     cat > "$MESHAI_CONFIG" << 'EOF'
 # MeshAI Configuration
-# Configure via http://localhost:7682
+# Edit this file directly, or configure via the dashboard
 
 bot:
   name: ai
@@ -66,22 +66,10 @@ meshmonitor:
   enabled: false
   inject_into_prompt: true
 EOF
-    echo "Default config created. Configure via http://localhost:7682"
+    echo "Default config created at $MESHAI_CONFIG. Edit it or configure via the dashboard."
 fi
 
 
-# Start ttyd for web-based config access
-echo "Starting web config interface on port 7682..."
-ttyd -W -p 7682 \
-    -t enableClipboard=true \
-    -t titleFixed="MeshAI Config" \
-    -t 'theme={"background":"#0d1117","foreground":"#c9d1d9","cursor":"#58a6ff","selectionBackground":"#388bfd"}' \
-    -t fontSize=14 \
-    /bin/bash -c 'while true; do python3 -m meshai --config-file "$MESHAI_CONFIG" --config; sleep 1; done' &
-
-# Keep ttyd running even if bot fails
-trap "kill %1 2>/dev/null" EXIT
-
 # Kill bot gracefully with SIGKILL fallback
 kill_bot() {
     local pid=$1