fix: melhora a formatação e tratamento de erros na função getExistingSourceIds

[KokeroO]

Problema

Mesmo após as correções de #1493 e #1490, em certas ocasiões continuou o erro:
bind message supplies 2 parameters, but prepared statement "" requires 1

Passou a ter o seguinte erro no banco de dados:
Error on import history messages: TypeError: Cannot read properties of null (reading 'has')

Solução

• Criar um condição para ser somente informado a quantidade de parâmetros corretos.
• has não lê valores null, então foi alterado a possibilidade de retorno do valor null em caso de acionamento do bloco catch

Summary by Sourcery

Fix parameter binding and error handling in getExistingSourceIds to prevent SQL parameter count mismatches and avoid returning null

Bug Fixes:

• Dynamically build the SQL query and its parameters in getExistingSourceIds to match the correct number of placeholders
• Return an empty Set instead of null in the catch block to prevent downstream TypeErrors

Enhancements:

• Log errors encountered in getExistingSourceIds for better observability

Chores:

• Remove redundant return 0 after message deletion

[sourcery-ai]

Reviewer's Guide

This PR refactors getExistingSourceIds to dynamically construct SQL parameters and query strings to match placeholders, adds error logging and returns an empty Set instead of null to prevent TypeErrors, and cleans up redundant code in the delete history flow.

File-Level Changes

Change	Details	Files
Refactor SQL query construction to avoid parameter mismatches	Introduce a params array that conditionally includes conversationId Move query string assignment to align with params setup Pass dynamic params array to pgClient.query	src/api/integrations/chatbot/chatwoot/utils/chatwoot-import-helper.ts
Enhance error handling in getExistingSourceIds	Log caught errors with logger.error for better observability Return an empty Set instead of null to prevent null reference exceptions	src/api/integrations/chatbot/chatwoot/utils/chatwoot-import-helper.ts
Remove redundant return in delete history flow	Eliminate unnecessary return 0 after deleteHistoryMessages and cache cleanup	src/api/integrations/chatbot/chatwoot/utils/chatwoot-import-helper.ts

Possibly linked issues

• corrige estrutura de if/else e bloco try/catch em chatwoot-import-helper.ts #1493: The PR changes getExistingSourceIds to check source IDs by conversation, resolving the media import issue described.

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[KokeroO]

@sourcery-ai review

[sourcery-ai]

Hey @KokeroO - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟡 General issues: 2 issues found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Documentation: all looks good

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[KokeroO]

@oriondesign2015 Não tem porque ter return 0 aqui. Ninguém espera retorno de importHistoryMessages

[KokeroO]

@sourcery-ai resolve