feat(KB): v0.8.0 — bulk upload, AI classifier, labels, tool kind

v0.8.0 ships the four-feature bundle from the v0.8.0 plan plus
mid-flight fixes discovered when batch-testing 5 circulars.

New capabilities:
  * Multi-file batch upload. AI classifier (Sonnet via ai-gateway)
    reads the first 3 pages of each PDF and proposes kind / title /
    identifier / labels / dates / summary. User reviews + edits per
    card before committing. Two-phase ingest: classify →
    awaiting_review → embed.
  * 'tool' kind for academic assessment instruments (GMFCS, MACS).
  * Labels (kb_label / kb_source_label) for sub-topic navigation;
    classifier proposes shared label slugs so the graph builds
    itself.
  * 'תוויות' admin sub-section for merge/delete of unused labels.
  * NEW 'ממתינים לאישור' panel: lists batches still in
    awaiting_review with status counters so a hard-refreshed user
    can resume their review — closes the RAM-only _activeBatch gap.

Mid-flight fixes folded in:
  * classifier timeout 45s→90s, concurrency 5→2. ai-gateway
    serializes through a single Claude OAuth session; with conc=5,
    jobs 4-5 of a 5-file batch consistently timed out.
  * labels schema array-of-string → comma-separated string. Claude
    via ai-gateway returned [{}, {}, {}] for items:{type:"string"}.
    _normalize accepts both shapes defensively.

Backfilled ai_classified_at + description + 1-3 labels for the 10
sources ingested in earlier sessions so the filter UX is uniform.

Backend (shira-hermes) in commits 0d678da (Phase 6) + bb23b8a
(this session's fixes).

Refs Task Master #20

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

manifest.json

@@ -1,7 +1,7 @@
 {
     "name": "KnowledgeBase",
     "module": "KnowledgeBase",
-    "version": "0.7.0",
+    "version": "0.8.0",
     "acceptableVersions": [
         ">=8.0.0"
     ],