Add Project API moderation and meta support

[alxgsv]

Summary

• Update Project API feature structs for the April 2026 schema, including the mime_type_filtering.is_enabled rename and new billing-related feature fields.
• Add moderation threshold endpoints with separate request and response threshold types so server-owned timestamps are not sent in PUT requests.
• Add Project API meta endpoints for MIME types and moderation categories.

Validation

• go test ./projectapi
• go list ./... | grep -v '/test$' | xargs go test

Note: the full go test ./... still requires integration credentials for the test package (SECRET_KEY and PUBLIC_KEY).

Summary by CodeRabbit

• New Features

  • Added moderation thresholds management (get/set) for projects
  • Added APIs to list supported MIME types and moderation categories
  • Expanded project features with new toggles: GIF→video conversion, malware protection, SVG validation, unsafe content detection, adaptive bitrate streaming, document conversion, EXIF metadata removal

• Tests

  • Added coverage for project feature JSON, moderation thresholds, meta endpoints, and path validation

• Chores

  • Updated changelog to reflect expanded Project API capabilities

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 2f5ae802-c47a-40d5-bc14-94b712d0065a

📥 Commits

Reviewing files that changed from the base of the PR and between f7a067a and 14bce1e.

📒 Files selected for processing (6)

• CHANGELOG.md
• projectapi/meta.go
• projectapi/moderation.go
• projectapi/projectapi.go
• projectapi/service.go
• projectapi/service_test.go

✅ Files skipped from review due to trivial changes (1)

• CHANGELOG.md

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Walkthrough

Adds moderation-threshold management and meta-listing APIs to projectapi: new types and Service methods, implementations for Get/Set moderation thresholds and ListMimeTypes/ListModerationCategories, CHANGELOG update, and tests covering JSON serialization, meta endpoints, moderation GET/PUT behavior, and path validation.

Changes

Moderation thresholds and meta reference APIs

Layer / File(s)	Summary
Core data structures and service interface projectapi/projectapi.go, projectapi/service.go, CHANGELOG.md	Expands ProjectFeatures and related types, renames MimeTypeFiltering JSON field to is_enabled, adds UnsafeContentDetection and AutoModerationMode, introduces moderation threshold/category and MIME-type types, and extends the Service interface with Get/Set moderation thresholds and meta listing methods. CHANGELOG updated to reflect expanded projectapi scope.
Moderation thresholds API implementation projectapi/moderation.go	Implements GetModerationThresholds (GET) and SetModerationThresholds (PUT) with pub-key validation, moderationThresholdsPath helper, and setModerationThresholdsParams for encoding PUT request bodies.
Meta reference API implementation projectapi/meta.go	Adds ListMimeTypes and ListModerationCategories methods that call meta endpoints and unmarshal responses into MimeTypes and ModerationCategories containers via ResourceOp.
Test coverage for new behavior projectapi/service_test.go	Adds TestProjectFeatureJSON, TestModerationThresholds, TestMeta, and extends TestPathValidation to cover JSON serialization, moderation GET/PUT request/response semantics (including omission of timestamp fields and nil handling), meta endpoints, and invalid pub-key cases.

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant ProjectAPIService
  participant ResourceOp
  participant UploadcareAPI
  Client->>ProjectAPIService: GetModerationThresholds(pubKey)
  ProjectAPIService->>ResourceOp: ResourceOp(GET, /projects/{pubKey}/moderation/thresholds/)
  ResourceOp->>UploadcareAPI: HTTP GET /projects/{pubKey}/moderation/thresholds/
  UploadcareAPI-->>ResourceOp: 200 JSON (ModerationThresholds)
  ResourceOp-->>ProjectAPIService: decoded ModerationThresholds
  ProjectAPIService-->>Client: ModerationThresholds

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Add Project API moderation and meta support' directly and concisely summarizes the main changes: adding moderation threshold endpoints and meta endpoints (MIME types, moderation categories) to the Project API.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch project-api-2026-04-updates

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[ckcnik]

should we add rename to BREAKING CHANGES ?

MimeTypeFiltering (is_mime_filtering_enabled → is_enabled)

[alxgsv]

Project API wasn't released yet, so I think we can just edit it