Vendor OpenClaw source as Adolf fork baseline

Adolf is a fork/vendored clone of github.com/openclaw/openclaw (v2026.6.11),
free to diverge. Tree copied sans upstream .git; upstream remote added for
future syncs. Node pinned to 24 (.nvmrc); engines already require >=22.19.
Preserves docs/ARCHITECTURE.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LeqyaxJF2nbRXJtae2kNB2

skills/model-usage/SKILL.md

@@ -0,0 +1,71 @@
+---
+name: model-usage
+description: "Summarize CodexBar local cost logs by model for Codex or Claude, including current or full breakdowns."
+metadata:
+  {
+    "openclaw":
+      {
+        "emoji": "📊",
+        "os": ["darwin"],
+        "requires": { "bins": ["codexbar"] },
+        "install":
+          [
+            {
+              "id": "brew-cask",
+              "kind": "brew",
+              "formula": "steipete/tap/codexbar",
+              "bins": ["codexbar"],
+              "label": "Install CodexBar (brew cask)",
+            },
+          ],
+      },
+  }
+---
+
+# Model usage
+
+## Overview
+
+Get per-model usage cost from CodexBar's local cost logs. Supports "current model" (most recent daily entry) or "all models" summaries for Codex or Claude.
+
+Live CodexBar CLI invocation is currently documented for macOS only. The bundled Python summarizer is portable: if you already have exported CodexBar JSON, `--input` mode works anywhere Python is available.
+
+## Quick start
+
+1. Fetch cost JSON via CodexBar CLI or pass a JSON file.
+2. Use the bundled script to summarize by model.
+
+```bash
+python {baseDir}/scripts/model_usage.py --provider codex --mode current
+python {baseDir}/scripts/model_usage.py --provider codex --mode all
+python {baseDir}/scripts/model_usage.py --provider claude --mode all --format json --pretty
+```
+
+## Current model logic
+
+- Uses the most recent daily row with `modelBreakdowns`.
+- Picks the model with the highest cost in that row.
+- Falls back to the last entry in `modelsUsed` when breakdowns are missing.
+- Override with `--model <name>` when you need a specific model.
+
+## Inputs
+
+- Default: runs `codexbar cost --format json --provider <codex|claude>`.
+- macOS: use the bundled CodexBar CLI install path above for live local usage reads.
+- Linux/other platforms: use `--input` with exported CodexBar JSON until this skill documents a supported local CodexBar install path for that platform.
+- File or stdin:
+
+```bash
+codexbar cost --provider codex --format json > /tmp/cost.json
+python {baseDir}/scripts/model_usage.py --input /tmp/cost.json --mode all
+cat /tmp/cost.json | python {baseDir}/scripts/model_usage.py --input - --mode current
+```
+
+## Output
+
+- Text (default) or JSON (`--format json --pretty`).
+- Values are cost-only per model; tokens are not split by model in CodexBar output.
+
+## References
+
+- Read `references/codexbar-cli.md` for CLI flags and cost JSON fields.