feat: scaffold redsen-lean-harness v0.1.0

Recovered from crashed session (Node OOM). Repo contains full P0-P6
scaffold: plugin.json/marketplace.json, AGENTS.md, ADRs 0001-0006,
lh CLI (init/index/graph/lane/run/memory/host/report/doctor), 10
.github/agents, 12 CLI skills, instructions, context7 mcp.json, and
unit/e2e test suite.

Fixed: run.mjs read --in-tokens/--out-tokens but tests and CLI docs
use --input-tokens/--output-tokens, so telemetry totals were always 0.
Now accepts both forms.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/skills/memory/SKILL.md

@@ -0,0 +1,14 @@
+---
+name: memory
+description: Use when retrieving, writing, compacting, or scanning lean harness memory shards.
+---
+
+# memory skill
+
+1. Use `lh memory list` to inspect shards.
+2. Use `lh memory get --shard <name>` to read one shard.
+3. Use `lh memory put --shard <name>` to write durable facts.
+4. Use `lh memory scan` before risky writes.
+5. Use `lh memory compact` when shards grow noisy.
+
+Never write secrets to memory.