feat: add path-level prerender deploy support to tokowaka-client

[ssilare-adobe]

Context

This is PR 1 of 4 in the end-to-end path-level prerender suggestions feature. It must ship and be consumed by `spacecat-api-service` before path deploy requests can be made.

Feature overview: The prerender audit today generates per-URL and domain-wide suggestions. This feature adds a third tier — path-level suggestions (e.g., `/products/*`) — that group URLs by their first path segment. When a path is deployed, the CDN allow-list is updated with that path pattern (append semantics), and per-URL suggestions under that prefix are marked as covered. See the full design plan for details.

Deployment sequence

#	Repo	Status
1	spacecat-shared (tokowaka-client) ← this PR	Must ship first
2	spacecat-api-service	Depends on this PR
3	spacecat-audit-worker	Can develop in parallel, deploy after #1
4	project-elmo-ui	Deploy last

What this PR does

Extends packages/spacecat-shared-tokowaka-client to handle pathType: true suggestions in the deployToEdge and rollbackSuggestions methods.

Key changes

deployToEdge — path suggestions use append semantics:

• Classify suggestions with data.pathType === true as pathSuggestions (separate from domainWideSuggestions and per-URL validSuggestions)
• Read existing metaconfig.prerender.allowList → append the new path pattern (deduped via Set) → write back
• Never generates per-URL S3 configs for path suggestions
• Sets edgeDeployed timestamp on the suggestion after successful deploy
• Returns coveredSuggestions for per-URL suggestions whose URL starts with the deployed path prefix

rollbackSuggestions — path and domain-wide suggestions use remove-one semantics:

• Path (pathType: true) and domain-wide (isDomainWide: true) suggestions are classified before filterEligibleSuggestions (the prerender mapper's canDeploy rejects them since they have no url field)
• Each is rolled back by fetching the metaconfig, removing its allowedRegexPatterns[0] from allowList, and writing back
• If allowList is empty after removal, deletes the prerender key entirely
• Does NOT touch other patterns (e.g., leaves /* intact when rolling back /products/*)
• Errors per-suggestion are collected and returned in failedSuggestions; other suggestions in the same batch are unaffected

Domain-wide deploy updated (no longer full-replace):

• Domain-wide deploy now merges /* into the existing allowList instead of full-replacing
• This preserves already-deployed path patterns when domain-wide is deployed on top
• Rollback of domain-wide removes only /* from the list via the same remove-one path

Concurrent path deploys (race condition mitigation):

• When multiple path suggestions are deployed in the same batch (e.g., user multi-selects), process them sequentially per baseUrl rather than in parallel to avoid last-writer-wins on the allowList

allowList behaviour summary

Action	Domain-wide (/*)	Path type (/products/*)
Deploy	Merge /* into existing list	Append only — reads existing list, adds new pattern, writes back
Rollback	Remove /*, delete key if empty	Remove one pattern, delete key if list empty after removal

Test additions (packages/spacecat-shared-tokowaka-client/test/index.test.js)

• Path deploy appends /products/* when allowList is empty → ['/products/*']
• Path deploy appends /products/* when allowList: ['/*'] → ['/*', '/products/*'] (domain-wide preserved)
• Path deploy is a no-op if the pattern is already in allowList
• No per-URL S3 config generated for path suggestions
• Path rollback of /products/* removes only that pattern, leaves /* intact
• Path rollback of the last remaining pattern deletes prerender key entirely
• Domain-wide deploy merges /* into existing list (not full replace)
• Domain-wide rollback removes only /*
• coveredSuggestions returns matching per-URL suggestions for path deploys
• Sequential processing of multiple path suggestions in one batch
• Path rollback skips CDN write when metaconfig has no prerender key
• Path rollback skips CDN write when pattern is not in allowList
• Path rollback marks suggestion ineligible when allowedRegexPatterns is missing
• Path rollback marks suggestion ineligible when no metaconfig exists
• Path rollback marks suggestion as failed with statusCode: 500 when upload throws

Test plan

• Run npm test -w packages/spacecat-shared-tokowaka-client — all 718 tests pass, 100% line/branch/statement coverage
• New path deploy/rollback tests pass
• Domain-wide deploy/rollback regression tests pass

🤖 Generated with Claude Code

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This PR will trigger a minor release when merged.