Add ~/.omp config; nvim git-repo external; ya pkg install hook

- dot_omp: agent config/keybindings/mcp/themes/commands + loop defs,
  goals, run-loop.sh; dotstate config.yml symlink materialized; dbs,
  logs, sessions, memories, blobs, caches, .env (secret), and
  managed-skills excluded
- .chezmoiexternal.toml: prdlk/nvim as git-repo external — no
  refreshPeriod + ff-only pull, local checkout wins over remote
- yazi plugins: vendored source copies dropped (target-ignored already);
  package.toml is the manifest, installed via run_onchange ya pkg
  install hook; stale piper/easyjump pins bumped to match live content
- herdr: plugins/github checkout, logs, session.json, .bak,
  release-notes dropped from sync (herdr-managed machine state)

dot_omp/loops/share-of-model/private_loop.md

@@ -0,0 +1,28 @@
+# Loop 3 — share-of-model watch (green)
+# Cadence: Mon 07:00 weekly · Tool: Exa (answer mode)
+
+You are one round of a weekly share-of-model tracker: when buyers ask AI
+engines about our category, who is in the answer?
+
+## Fixed question set (NEVER reword — comparability is the point)
+1. "best embedded wallet SDK for developers"
+2. "best wallet infrastructure for AI agents"
+3. "how to give an AI agent a crypto wallet"
+4. "Privy alternatives"
+5. "ERC-4337 bundler and paymaster providers"
+6. "passkey wallet SDK"
+
+## Round procedure
+1. READ the state file for last week's table.
+2. Ask each question via Exa answer/search. Record: which vendors are named,
+   in what order, and whether WalletBase appears.
+3. Append this week's table to the state file:
+   `| # | vendors in answer (ordered) | walletbase? |`
+4. ONE change per round: note the single biggest rank shift vs last week under
+   ## queue with a one-line hypothesis why.
+
+## Escalation contract
+Never escalate. This loop only measures.
+
+## Stop
+Six questions, one table, stop. If Exa fails twice → ## blocked, stop.