Adapt backend search to complex filter

[MoSchmidt]

No description provided.

[Copilot]

Pull request overview

Adds support for an “advanced search filter” (year range + nested AND/OR text conditions) across backend search endpoints and propagates it through the generated OpenAPI schema/client and frontend search flow.

Changes:

• Introduces AdvancedSearchFilter / ConditionGroup / TextCondition DTOs and wires them through search request/handling.
• Applies advanced filters in the vector search repository query (year bounds + title/abstract contains/not-contains).
• Updates OpenAPI spec + regenerated TypeScript client and hooks the new filter into the frontend search calls.

Reviewed changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated 13 comments.

Show a summary per file

File	Description
openapi/openapi.json	Documents the new advanced filter schemas and updated search endpoint descriptions/parameters.
frontend/src/services/search.ts	Adds advanced filter support to text/PDF search service calls.
frontend/src/pages/SearchPage.vue	Passes advanced options through to the updated search service functions.
frontend/src/api/models/validation-error.ts	Updates validation error loc type import to the regenerated model.
frontend/src/api/models/text-condition.ts	Adds generated model for text conditions.
frontend/src/api/models/search-request.ts	Adds filter to SearchRequest type.
frontend/src/api/models/index.ts	Exports newly generated advanced-filter-related models.
frontend/src/api/models/condition-group.ts	Adds generated model for condition groups.
frontend/src/api/models/condition-group-children-inner.ts	Adds generated union type for recursive group/condition children.
frontend/src/api/models/advanced-search-filter.ts	Adds generated model for the advanced search filter DTO.
frontend/src/api/common.ts	Updates query param flattening and JSON serialization behavior in the generated client.
frontend/src/api/apis/users-api.ts	Removes now-nonexistent helper import from generated API.
frontend/src/api/apis/search-api.ts	Adds filter form field parameter for PDF search and updates generated docs/signatures.
frontend/src/api/apis/projects-api.ts	Removes now-nonexistent helper import from generated API.
frontend/src/api/apis/paper-api.ts	Removes now-nonexistent helper import from generated API.
frontend/src/api/apis/authentication-api.ts	Removes now-nonexistent helper import from generated API.
frontend/src/api/.openapi-generator/VERSION	Updates recorded OpenAPI generator version.
frontend/src/api/.openapi-generator/FILES	Updates generated file manifest for new/removed models.
backend/app/services/search_service.py	Threads search_filter through the search pipeline into the repository.
backend/app/schemas/search_dto.py	Defines Pydantic DTOs for advanced filtering and adds them to SearchRequest.
backend/app/routes/search_routes.py	Accepts/parses advanced filter for PDF search and passes it to the service layer.
backend/app/repositories/search_repository.py	Implements SQLAlchemy clause generation for year/text-condition filters.
CLAUDE.md	Adds repository guidance for Claude Code usage and project commands.

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[Wunderwaffel]

lgtm