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/instructions/memory.instructions.md

@@ -0,0 +1,37 @@
+---
+applyTo: '**'
+description: Rules for reading, writing, compacting, and protecting lean harness memory shards.
+---
+
+# Memory Rules
+
+## Read memory
+
+1. Load `.agents/memory/INDEX.md` by default.
+2. Do not load every shard at startup.
+3. Use `lh memory get --shard <name>` only when needed.
+4. Prefer compact shards over raw history.
+
+## Write memory
+
+1. Use `lh memory put --shard failures` for recurring failures and fixes.
+2. Use `lh memory put --shard corrections` for user corrections and changed assumptions.
+3. Use `lh memory put --shard insights` for reusable design or codebase facts.
+4. Use `lh memory put --shard conventions` for durable project rules.
+5. Use `lh memory put --shard quirks` for environment or tool behavior.
+6. Keep entries short, dated, and source-linked.
+7. Record what happened, why it matters, and where it applies.
+
+## Protect secrets
+
+1. Never write secrets to memory.
+2. Never write tokens, keys, passwords, cookies, private keys, or credentials.
+3. Run `lh memory scan` before saving risky content.
+4. Redact sensitive values at source.
+5. Stop and ask for remediation if a secret is already present.
+
+## Compact memory
+
+1. Use `lh memory compact` when shards grow noisy.
+2. Preserve decisions, fixes, conventions, and source paths.
+3. Drop duplicate logs and stale speculation.