test(geo3d): make stale raster cache expiry deterministic

[wybaby168]

Summary

• Keep the stale raster-cache fixture live until the test explicitly expires it. A 1 ms insertion TTL could expire under load before source ownership was recorded.
• Assert that the real cache retains its ownership key before and after explicit expiration, then require disposal to remove every retained entry and byte.
• Restore the focused test repair from fix(geo3d): preserve Blob inputs and confine archive resources #338 that was absent from current main after fix(viewer): sync corpus fixes and native DOCX rendering #343. Production code and dependency manifests are unchanged.

Related issue

N/A: maintenance-only deterministic regression fixture repair; restores the test-only portion of #338.

Change classification

• User-visible UI or rendering change
• Non-visual change
• File-format or renderer behavior
• Public API, package, Worker, WASM, or deployment-path change

Verification

Validated in an independent Linux cloud workspace at main eb84220, with Node 24.20.0 and pnpm 11.0.9 and NODE_PATH/NODE_OPTIONS unset.

• Pass: selected-workspace pnpm install --frozen-lockfile with official npm dependencies. Cached dependencies were reused; this is not a cold full-workspace installation claim.
• node --test packages/renderers/3d/scripts/geo3d-raster-cache.test.mjs: Pass (5 tests).
• Pass: current-source controlled-clock variants. Original main fails the initial entry-count assertion after a 10 ms clock advance; the fixed fixture passes at 10 ms and one hour. Removing the real ownership cleanup fails the final disposal assertion with one retained entry, proving the strict regression remains effective.
• pnpm test:geo3d-entry: Pass (40 Vitest tests, core/geometry/renderer builds, 22 acceptance checks, 10 texture checks, zero NodeNext/Bundler type diagnostics, and 114 Node regressions).
• pnpm verify:github-governance: Pass (50 tests, one existing private-release skip, community standards and formatting).
• Pass: git diff --check.
• Hosted Public CI, Security and Geo3D focused validation will verify this exact published head. Local browser acceptance was not run in this executor.

Sample / fixture evidence

N/A: no file-format or rendering behavior change. The repository regression fixture, packages/renderers/3d/scripts/geo3d-raster-cache.test.mjs, executes the hash-verified installed Giro3D cache and its real LRU dependency.

Visual evidence

N/A: test-only fixture timing and ownership assertions; no user-visible rendering change.

Risk and compatibility

• Affected packages/formats: renderer-3d GeoTIFF cache regression tests only.
• Compatibility or migration risk: low; production behavior, release artifacts and dependency versions are unchanged.
• Rollback: revert this one-file test commit.

Checklist

• I added or updated focused automated coverage, or explained why it is not needed.
• I updated user-facing documentation or release notes when behavior or API changed, or marked them not applicable.
• I verified offline/private-deployment paths when changing Worker, WASM, fonts, vendor assets, or URLs.
• I did not commit secrets, customer files, private samples, generated caches, or unrelated changes.