rebrand: rename VoiceBox to TalkBox throughout codebase

- All 'voicebox'/'Voicebox'/'VOICEBOX' strings replaced with 'talkbox'/'TalkBox'/'TALKBOX'
- Port changed from 17493 to 17494 (avoids conflict with upstream VoiceBox)
- MCP tool namespace: voicebox.* -> talkbox.*
- App bundle ID: sh.voicebox.app -> com.talkbox.app
- Binary names: voicebox-server -> talkbox-server, voicebox-mcp -> talkbox-mcp
- Docker user/group: voicebox -> talkbox
- Database: voicebox.db -> talkbox.db
- Env vars: VOICEBOX_* -> TALKBOX_*
- Asset files renamed: voicebox-logo.* -> talkbox-logo.*, etc.
- External binaries in tauri.conf.json updated to talkbox-server/talkbox-mcp

scripts/generate-api.sh

@@ -6,7 +6,7 @@ set -e
 echo "Generating OpenAPI client..."
 
 # Check if backend is running
-if ! curl -s http://localhost:17493/openapi.json > /dev/null 2>&1; then
+if ! curl -s http://localhost:17494/openapi.json > /dev/null 2>&1; then
     echo "Backend not running. Starting backend..."
     cd backend
     
@@ -26,19 +26,19 @@ if ! curl -s http://localhost:17493/openapi.json > /dev/null 2>&1; then
     
     # Start backend in background
     echo "Starting backend server..."
-    uvicorn main:app --port 17493 &  # Keep the generator on the app's documented local backend port.
+    uvicorn main:app --port 17494 &  # Keep the generator on the app's documented local backend port.
     BACKEND_PID=$!
     
     # Wait for server to be ready
     echo "Waiting for server to start..."
     for _ in {1..30}; do
-        if curl -s http://localhost:17493/openapi.json > /dev/null 2>&1; then
+        if curl -s http://localhost:17494/openapi.json > /dev/null 2>&1; then
             break
         fi
         sleep 1
     done
     
-    if ! curl -s http://localhost:17493/openapi.json > /dev/null 2>&1; then
+    if ! curl -s http://localhost:17494/openapi.json > /dev/null 2>&1; then
         echo "Error: Backend failed to start"
         kill $BACKEND_PID 2>/dev/null || true
         exit 1
@@ -52,7 +52,7 @@ fi
 
 # Download OpenAPI schema
 echo "Downloading OpenAPI schema..."
-curl -s http://localhost:17493/openapi.json > app/openapi.json
+curl -s http://localhost:17494/openapi.json > app/openapi.json
 
 # Check if openapi-typescript-codegen is installed
 if ! bunx --bun openapi-typescript-codegen --version > /dev/null 2>&1; then