search w/ POST

[ChuckHend]

URL query parameters can get unwieldy, so provide an equivalent way to search using POST w/ json in body.

[Copilot]

Pull Request Overview

This PR adds POST method support for the /api/v1/search endpoint, allowing clients to submit search parameters via JSON request body instead of URL query parameters. This provides a more ergonomic API for complex filter objects.

• Added SearchRequestPOST struct and search_json endpoint handler for POST requests
• Refactored search logic into shared search_internal function used by both GET and POST
• Updated documentation to explain both GET and POST usage patterns with examples

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
server/src/routes/search.rs	Added POST endpoint with SearchRequestPOST struct, refactored shared logic into search_internal
server/src/server.rs	Registered new search_json route handler
server/tests/tests.rs	Added test coverage for POST search endpoint with filters
docs/server/api/search.md	Updated documentation to cover both GET and POST methods with examples
core/src/query.rs	Fixed punctuation in error message (added period)
core/src/init.rs	Changed vec! to array literal and removed format! macro call
.gitignore	Added .vscode directory to gitignore

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