[DEVOPS-4158] feat: add context support to client requests

[Richard Boisvert (rbstp)]

C'est surtout pour ne plus devoir faire un wrapping de timeout dans external-secrets/external-secrets#5712

Summary

Add context.Context support to all client HTTP requests, enabling request cancellation, timeouts, and context value propagation.

Changes

• Add RequestWithContext as the core context-aware request handler
• Add *WithContext variants for all public service methods:
  • Vaults: Get, New, Update, Delete, ValidatePassword
  • EntryCredentialService: Get, GetById, New, Update, Delete, DeleteById
  • EntryCertificateService: Get, GetFileContent, GetPassword, NewURL, NewFile, Update, Delete
  • EntryHostService: Get, GetHostDetails
  • EntryWebsiteService: Get, GetWebsiteDetails
  • Client: GetPublicServerInfo, GetPrivateServerInfo, GetServerTimezones
• Propagate context through internal methods (login, isLogged, rawRequest, attachment operations)
• Preserve backward compatibility: original methods delegate to context.Background()

Tests

• Context cancellation
• Context timeout
• Context value propagation
• Successful requests without cancellation

[github-actions]

🤖 You did not bump the version, a release won't be created ⚠️

[Copilot]

Pull request overview

This pull request adds comprehensive context support to all client HTTP requests, enabling cancellation, timeout control, and context value propagation throughout the DVLS Go SDK. The changes maintain backward compatibility by keeping existing methods and adding new *WithContext variants.

Key Changes:

• Introduced RequestWithContext and rawRequestWithContext methods using http.NewRequestWithContext for proper context handling
• Added *WithContext variants for all public API methods across vaults, server info, and entry operations
• Implemented comprehensive test suite validating context cancellation, timeout, and propagation behavior

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
dvls.go	Added RequestWithContext and rawRequestWithContext methods; existing Request method now delegates to context variant with context.Background()
authentication.go	Added context support to internal login and isLogged methods for proper context propagation
vaults.go	Added *WithContext variants for all vault operations (Get, New, Update, Delete, ValidatePassword)
server.go	Added *WithContext variants for server info and timezone retrieval methods
entry_credential.go	Added *WithContext variants for all credential entry operations with proper internal context threading
entry_certificate.go	Added *WithContext variants for certificate entry operations including file uploads
entry_website.go	Added *WithContext variants for website entry operations
entry_host.go	Added *WithContext variants for host entry operations
entry_attachments.go	Updated internal attachment methods to accept and propagate context
context_test.go	New comprehensive test suite covering cancellation, timeout, and context propagation scenarios
VERSION	Bumped version from 0.14.0 to 0.15.0 (appropriate minor version increment)

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