bug(evolution_go): api_url not persisted in provider_config and missing webhook on instance creation

[andersonlemesc]

Description

When the Evolution Go API URL is configured in Admin Settings → Channels → Evolution Go, the system does not carry that value forward during channel creation. As a result, api_url is never written into the channel_whatsapp.provider_config column, breaking API communication, QR Code generation, and webhook registration.

Root Cause

Two related issues compound the problem:

1. api_url not persisted in provider_config: When creating an Evolution Go channel, the system uses the admin-configured URL to perform the connection test but does not save it into channel_whatsapp.provider_config. The Api::V1::EvolutionGo::SettingsController reads provider_config['api_url'] directly and has no fallback to installation_configs (EVOLUTION_GO_API_URL), causing a 400 Bad Request on every subsequent API call.

2. Webhook URL not sent on instance creation: Because api_url is absent from provider_config at creation time, the webhook registration call to Evolution Go also fails or is never made, leaving the instance without a configured webhook.

Steps to Reproduce

1. Go to Settings → Admin Settings → Channels → Evolution Go
2. Set the API URL and Admin Secret, save
3. Go to Channels → New Channel → WhatsApp → Evolution Go
4. Enter display name and phone number, test connection, create channel
5. Open the channel settings
6. Click Connect → error: "Erro ao gerar QR Code"

Expected Behavior

• api_url is persisted in channel_whatsapp.provider_config at channel creation time
• The webhook URL is sent to Evolution Go when the instance is created
• Api::V1::EvolutionGo::SettingsController falls back to GlobalConfigService.load('EVOLUTION_GO_API_URL') when provider_config['api_url'] is absent

Workaround

Manually patch the record via SQL:

UPDATE channel_whatsapp
SET provider_config = provider_config || '{"api_url": "https://your-evogo-domain.com"}'::jsonb
WHERE provider = 'evolution_go' AND provider_config->>'instance_uuid' = '<your_instance_uuid>';

After this patch, QR Code generation and all settings endpoints work correctly.

Environment

• Service: evo-ai-crm-community + evo-auth-service-community
• Provider: evolution_go
• Table affected: channel_whatsapp (column: provider_config)
• Related controller: Api::V1::EvolutionGo::SettingsController#set_instance_params