feat: add smart result filters

[aadithyanr]

What changed

Turns the existing / result filter into a composable smart-filter bar while
preserving fuzzy title matching.

Examples:

res:1080p seeders:>20 size:<8gb
linux codec:x265 -source:cam
provider:nyaa category:anime is:trusted
is:hdr -is:dv

Supported facets:

• resolution, seeders, and human-readable size comparisons
• source, codec, provider, and category
• trusted, HDR, Dolby Vision, and season/collection pack attributes
• negation for every structured facet
• arbitrary fuzzy title text alongside any facets

The results header now shows the live filtered count, the filter field offers
syntax examples, and invalid values produce an inline explanation.

Why

Searches often return many versions of the same release. Sorting helps find the
best overall result, but it does not answer constraints such as “1080p x265,
under 8 GiB, at least 20 seeders, and not a CAM.” Smart filters make that
interactive without changing the provider query or triggering another network
search.

The same filtered result set feeds both the flat and grouped graph views.

Compatibility

• ordinary /some title fuzzy filtering behaves as before
• no config or state format changes
• no new dependencies

Local validation

• go test -count=1 ./...
• go vet ./...
• go build -o /tmp/tork-smart-filters ./cmd/tork
• ran the built binary with --version

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[melqtx]

lmao, ill review it asap, thanks for the pr

[melqtx]

lgtm, thanks for the pr. im merging the pr, will create a release shortly.