feat: replace K8s log streaming with PVC filesystem tailing

- Replaced streamPodLogs / streamPodLogsOnce / readPodLogs / waitForPodTermination
  with tailPodLogFile() that polls a shared PVC file path with adaptive cadence
  (250ms active, 1000ms idle after 5 consecutive empty polls)
- Added buildPodLogPath() export and podLogPath to JobBuildResult
- Added assertSafePathComponent with [a-zA-Z0-9-:] allowance for UUIDs
- Updated Job manifest to tee stdout to /paperclip/instances/default/run-logs/<companyId>/<agentId>/<runId>.pod.ndjson
- Added hasOutOfProcessLiveness: true to createServerAdapter (cast required)
- Deleted log-dedup.ts and log-dedup.test.ts entirely
- Removed all LogLineDedupFilter, Writable, and LOG_STREAM_* constants
- Removed completionResult.status workaround (completionWithGrace returns directly)
- Test infrastructure: mocked node:fs/promises to prevent unmocked fs.stat hangs

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "paperclip-adapter-opencode-k8s",
-  "version": "0.1.30",
+  "version": "0.1.38",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "paperclip-adapter-opencode-k8s",
-      "version": "0.1.30",
+      "version": "0.1.38",
       "license": "MIT",
       "dependencies": {
         "@kubernetes/client-node": "^1.0.0",