[herefindalex]

Public catalogue visitors currently cannot combine conditions across the complete set of product fields and category-specific Specs. This adds server-rendered, progressive GET filters for core fields and every applicable configured Spec, with one admitted published snapshot supplying definitions, options, matching, counts, sorting and pagination.

• Add explicit text, choice, multi-choice and numeric search profiles, plus Admin configuration, source selection, typed manual adoption and durable normalization progress. Numeric conditions distinguish error magnitude from supported values/ranges.
• Freeze filter semantics with each Product publication and reject stale activation. Preserve source-language keyword matches while displaying the selected locale; preserve filter and sorting URL state across Apply and pagination.
• Preserve existing Raw values, source selections and manual preference/history on upgrade. Configure all 34 sample Specs explicitly for future installations; process initial normalization in bounded durable work outside the Installer write transaction.
• Keep all core search/filter/pagination paths usable with JavaScript blocked. No version bump, tag or release is included.

Validation on final commit 3bda7f1:

• Current-head GitHub CI passed for both push and pull_request events: PR workflow.

• Go: 539 tests passed in 27 packages; PoC build tags: 578 passed in 27 packages; go vet ./... passed.

• Frontend: typecheck, 59 tests and full system/public/admin build passed; generated assets match the committed build.

• License policy passed. Sample JSON/schema/checksum and deterministic GNU gzip regeneration match; JSON schema validation passed (34 Specs, 1,200 Products, 4,834 Raw values).

• Cross-builds passed for Linux amd64, Windows amd64 and macOS amd64/arm64. Native Windows runtime remains unverified.

• Actual Linux browser: progressively combine Interface=SPI and supports 4 V, retain sort, paginate 27 results as 24+3, and clear to 28. Repeated native Apply/pagination/clear with CSP script-src 'none'. Admin checks covered revision conflicts preserving edits, read-only permissions, durable progress and manual preference preservation.

• Independent whole-branch review: two Important findings and one sorting finding, regraded Important, fixed in one pass with observed RED→GREEN regressions; no findings deferred.

Limits and integration:

• One native Apply per field keeps large field panels within the bounded GET request size. Existing installations need explicit profile configuration and normalization/adoption; no automatic sample reimport or field-name inference occurs.
• Ten locale defaults have not received professional native-language, legal or marketing review.
• Publication performance repair is independent PR v0.7.0 fix: avoid full catalogue reload for product publication #6. Neither branch includes the other; shared publication/worker files may need integration conflict resolution when both are accepted.
• Thomas owns merging and release decisions. This PR has not been merged or released.