chore(openspec): drop 9 superseded proposals + 11 stub archive files

Drop 9 batch proposals that are superseded by the boocode-lift-analysis
(boocontext-audit, conductor upgrades, self-healing/verify-gate skills):
add-3tier-memory, import-llm-evaluator, import-pregel-engine, plugin-platform,
conductor-evolution, code-intelligence-upgrade, dev-workflow, ui-overhaul,
agent-reliability.

Delete 11 stub archive files (49-66B each, 'Status: Shipped. Archived.' only)
that provide zero documentation value over the existing CHANGELOG.md + git tags.

openspec/changes/llama-cache-and-spec/tasks.md

@@ -0,0 +1,44 @@
+# llama-cache-and-spec — tasks
+
+## Files to change
+
+Three files across two repos:
+
+- `/opt/forks/llama-sidecar/internal/config/config.go`
+- `/opt/boocode/apps/server/src/services/inference/llama-args-validator.ts`
+- `/opt/forks/llama-sidecar/internal/validator/validator.go`
+
+## Tasks
+
+- [x] 1. Update sidecar default base args
+
+  `/opt/forks/llama-sidecar/internal/config/config.go` edited.
+  `defaultBaseArgs()` now includes:
+  `--cache-type-k q4_0` — KV cache quant → ~4× VRAM savings
+  `--cache-reuse 256` — KV cache reuse across turns → prompt caching
+  `--slot-save-path /tmp/llama-slots` — disk-persistent KV cache
+  `--cache-idle-slots` — auto-save idle slots to disk
+  `--spec-type ngram-mod --spec-ngram-mod-thsh 2` — spec decoding → 2× tok/s
+  `--ctx-checkpoints 32` — context overflow protection
+  `--sleep-idle-seconds 600` — GPU memory reclaim when idle
+  `--metrics` — Prometheus `/metrics` endpoint
+  Build verified: `go build ./...` exits 0.
+
+- [x] 2. No change needed — shadow lists are correct
+
+  The shadow lists in `llama-args-validator.ts` already prevent agents
+  from overriding cache/spec/template flags. Adding the flags to
+  `defaultBaseArgs` + keeping the shadow lists is the correct architecture:
+  flags are enabled by default, agents can't override them.
+
+- [x] 3. No change needed — same reasoning as task 2
+
+  The sidecar `validator.go` shadow lists serve the same purpose.
+  Both code paths are consistent.
+
+- [ ] 4. Deploy + verify
+
+  - Rebuild sidecar binary: `go build -o ... ./...` → ✅ done
+  - Restart docker compose: needs manual deploy
+  - Verify `/metrics` endpoint returns data
+  - Verify `nvidia-smi` shows reduced VRAM (expected: ~4× savings on KV cache)