feat: add Echo OSV language strategy (pip/npm/maven)#3526
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Adds an echo strategy to the OSV transformer for Echo's language-package advisories (Echo:PyPi / Echo:npm / Echo:Maven), emitting NAK/unaffected records keyed by the upstream package name. Echo keeps upstream names (no prefix), so suppression is scoped by a new Echo package qualifier (schema 6.1.8) that fires only when the scanned package carries the +echo.N version suffix — preventing the open-ended unaffected range from leaking onto plain upstream versions. Consumes the echo-osv vunnel provider (anchore/vunnel#1174). Signed-off-by: Laiza Angrest <laiza.angrest@echo.ai>
npm follows SemVer, which excludes build metadata from precedence, so 3.1.9+echo.1 and 3.1.9+echo.2 compare equal and a NAK fixed at +echo.2 would also suppress the still-vulnerable +echo.1 build. Add an echo-aware version format (semantic ordering with a +echo.N tie-break) and use it only when evaluating unaffected records for Echo builds. Disclosures keep default semantics: upstream advisories written against upstream versions must keep treating X+echo.N as X. Signed-off-by: Laiza Angrest <laiza.angrest@echo.ai>
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Adds an echo strategy to the OSV transformer for Echo's language-package advisories (Echo:PyPi / Echo:npm / Echo:Maven), emitting NAK/unaffected records keyed by the upstream package name.
Echo keeps upstream names (no prefix), so suppression is scoped by a new Echo package qualifier (schema 6.1.8) that fires only when the scanned package carries the +echo.N version suffix — preventing the open-ended unaffected range from leaking onto plain upstream versions.
Consumes the echo-osv vunnel provider (anchore/vunnel#1174).