♻️ uniformize with other sdks

[sebastianMindee]

Description

Note for Copilot: disregard the Requires a change to the official Guide documentation.

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires a change to the official Guide documentation.

[Copilot]

Pull request overview

This PR aligns the Java SDK’s V2 behavior with other Mindee SDKs by tightening URL safety checks, improving numeric precision handling, introducing typed job statuses, and adding a convenience API for fetching inference results directly from a full inference URL.

Changes:

• Introduces JobStatus enum and switches Job.status to a typed value (plus updates polling logic and tests accordingly).
• Switches numeric SimpleField JSON parsing from Double to BigDecimal for precision preservation (and updates tests).
• Adds getResultFromUrl() plus enhanced polling options (backoff + cancellation), and expands test coverage (unit + integration).

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/test/java/com/mindee/v2/product/ExtractionTest.java	Updates assertions to reflect BigDecimal numeric storage.
src/test/java/com/mindee/v2/parsing/JobTest.java	Updates job status assertions to use JobStatus.
src/test/java/com/mindee/v2/MindeeClientTest.java	Adds unit tests for getResultFromUrl() and polling cancellation/backoff.
src/test/java/com/mindee/v2/MindeeClientIT.java	Adds integration test validating getResultFromUrl() against a real job result URL.
src/test/java/com/mindee/v2/clientoptions/PollingOptionsTest.java	Adds tests for new polling option fields and validation.
src/test/java/com/mindee/v1/MindeeClientTest.java	Replaces fake/invalid URLs with example.com URLs in tests.
src/test/java/com/mindee/v1/http/MindeeHttpApiV1Test.java	Updates expected URL payloads to use example.com.
src/test/java/com/mindee/input/URLInputSourceTest.java	Adds tests for SSRF/loopback hardening in validateSecure().
src/main/java/com/mindee/v2/parsing/JobStatus.java	Adds typed job status enum with Jackson serialization/deserialization.
src/main/java/com/mindee/v2/parsing/Job.java	Changes job status type to JobStatus.
src/main/java/com/mindee/v2/parsing/inference/field/SimpleFieldDeserializer.java	Deserializes numeric fields as BigDecimal via decimalValue().
src/main/java/com/mindee/v2/parsing/inference/field/SimpleField.java	Updates numeric accessors to reflect BigDecimal backing storage.
src/main/java/com/mindee/v2/MindeeClient.java	Adds getResultFromUrl() and introduces interruptible polling sleep with backoff/cancellation.
src/main/java/com/mindee/v2/http/MindeeHttpApiV2.java	Implements reqGetResultFromUrl() HTTP call.
src/main/java/com/mindee/v2/http/MindeeApiV2.java	Adds abstract reqGetResultFromUrl() contract.
src/main/java/com/mindee/v2/clientoptions/PollingOptions.java	Adds backoff/cancel token options and validation.
src/main/java/com/mindee/input/URLInputSource.java	Expands validateSecure() with SSRF/loopback address protections.
pom.xml	Bumps tools.jackson.core:jackson-databind version property.