Merge pull request #1512 from trheyi/main

fix(tests): improve error handling in unit tests and Makefile

feat(job): enhance health checker and data cleaner with panic recovery and graceful shutdown

refactor(time): enhance timestamp handling with utility functions

refactor(assistant): replace JSON LIKE handling with JSON contains logic

refactor(assistant): streamline JSON handling in query filters

feat(database): add PostgreSQL support and enhance JSON handling

feat(profile): add endpoint to retrieve linked OAuth accounts for the user

feat(middleware): add support for markdown content negotiation and rendering

Merge pull request #1510 from trheyi/main

chore(dependencies): update golang.org/x/text, golang.org/x/image, and golang.org/x/sync to latest versions

refactor(response): remove hardcoded cookie path from refresh token functions

Merge pull request #1509 from trheyi/main

refactor(sandbox/v2): replace resolveEnvRef with str.EnvVar for environment variable handling

fix(sandbox/v2): enhance resolveEnvRef to support base64-encoded environment variables