fix(setup): decouple OpenClaw config patch from being mandatory

OCP markets itself as a standalone OpenAI-compatible proxy with six
supported IDE clients (Cline / Cursor / Continue.dev / OpenCode / Aider /
OpenClaw). The README §Server Setup says "node setup.mjs" is the
installer entrypoint. But on a truly fresh box without OpenClaw
installed, setup.mjs hard-fails at line 111:

    if (!existsSync(CONFIG_PATH)) fail(`OpenClaw config not found...`);

This contradicts the standalone-proxy stance and was caught during
PR #71 dogfood testing on Pi231.

Root cause: the OpenClaw config patch (lines 110-148) was baked in as
required because OCP started life as an OpenClaw-internal helper. The
project has since rebranded to standalone OCP without decoupling the
installer.

Fix: gate the OpenClaw config patch (Step 2) and auth-profiles patch
(Step 3) on existsSync(CONFIG_PATH). When OpenClaw is present, behavior
is byte-for-byte identical to current main (verified via dry-run hash
diff against ~/.openclaw/openclaw.json — UNCHANGED). When OpenClaw is
absent, the installer logs a graceful warning, skips both patch
sections, and continues to start.sh / launchd-plist / systemd-unit
creation as before. The summary banner is also conditional: when
OpenClaw is absent, it points the user at README § "Client Setup"
instead of giving openclaw.json edit instructions.

Also moves `import { readdirSync }` from mid-file (line 178, post-use)
to the top-level imports block; this was a latent ESM-hoisting quirk
that worked but is now syntactically required at the top because the
readdirSync call moved inside an `if` block.

Out of scope (Iron Rule 11, single-layer PR): server.mjs, models.json,
scripts/sync-openclaw.mjs, README.md, ALIGNMENT.md, package.json
version, the duplicate-spawn / health-verify logic at line 268+ (that's
a separate fix/setup-spawn-conflict PR).

Mac mini production unaffected: ~/.openclaw/openclaw.json already
exists there, so the OpenClaw-present path is preserved. `ocp update`
doesn't invoke setup.mjs, so running services are not touched.

Smoke-tested locally:
- Path 1 (OpenClaw present): dry-run output functionally identical to
  current main; config sha256 unchanged after run.
- Path 2 (OpenClaw absent, OPENCLAW_STATE_DIR=/tmp/no-such-dir-*):
  graceful warn, both patch sections skipped, banner shows
  standalone-mode message, dry-run completes successfully.
- npm test: 43/43 pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

README.md

@@ -20,14 +20,15 @@ One proxy. Multiple IDEs. All models. **$0 API cost.**
 
 ## Why OCP?
 
-There are several Claude proxy projects. OCP picks a specific lane: **align tightly with what `cli.js` actually does, observe + multiplex what's already there, don't extend the protocol.** Concretely:
+There are several Claude proxy projects. OCP picks a specific lane: **align tightly with what `cli.js` actually does, observe + multiplex what's already there, don't extend the protocol.** What you get:
 
-- **SSE heartbeat on streaming** ([v3.12.0](https://github.com/dtzp555-max/ocp/releases/tag/v3.12.0), opt-in via `CLAUDE_HEARTBEAT_INTERVAL`). Long Claude reasoning or tool-use pauses can sit silent for minutes; downstream load balancers and reverse proxies often kill the connection at 60s idle. OCP emits an SSE comment frame during silent windows so the connection stays alive without polluting the response. ([PR #49](https://github.com/dtzp555-max/ocp/pull/49))
+- **LAN multi-user keys** (v3.7.0) — share one Claude Pro/Max subscription with family, friends, or your own devices. Each user gets a per-key API token (no OAuth session leak), with independent usage tracking and one-line revocation.
-- **Alignment constitution + CI guardrail.** [`ALIGNMENT.md`](./ALIGNMENT.md) is the binding spec: every endpoint OCP exposes must correspond to something `cli.js` actually does, with a line-number citation. The [`alignment.yml`](./.github/workflows/alignment.yml) workflow auto-blocks PRs that introduce known-hallucinated tokens (`api/oauth/usage`, `api/usage`, etc). Hard to drift, even with LLM-assisted contributions.
+- **`ocp-connect` one-shot IDE setup** — one command on the client machine detects and configures Claude Code, Cursor, Cline, Continue.dev, OpenCode, and OpenClaw. No pasting `OPENAI_BASE_URL` six times.
-- **`models.json` single source of truth** (v3.11.0). Adding a model is one file edit; both `/v1/models` and the OpenClaw bootstrap derive from it. No more drift between server and installer. ([PR #30](https://github.com/dtzp555-max/ocp/pull/30))
+- **Response cache with per-key isolation + singleflight** (v3.13.0). Optional SHA-256 prompt cache, isolated per API key (cross-user pollution is impossible by hash construction, not by application logic), with stampede protection on concurrent identical prompts. Off by default. ([PR #65](https://github.com/dtzp555-max/ocp/pull/65), [PR #66](https://github.com/dtzp555-max/ocp/pull/66))
-- **Multi anonymous-key distribution** (v3.7.0). Share one OCP instance with friends/family/devices without exposing your OAuth session — each gets a per-user key, with usage tracking and revocation.
+- **Per-key request quotas** (v3.8.0). Daily / weekly / monthly limits per key — set a kid's iPad to 20/day, a partner's laptop to 100/week. ([PR #18](https://github.com/dtzp555-max/ocp/pull/18))
-- **Per-key quota + response cache** (v3.8.0). Daily/weekly/monthly request limits per key. Optional SHA-256 prompt cache for development loops. ([PR #18](https://github.com/dtzp555-max/ocp/pull/18))
+- **SSE heartbeat for long reasoning** ([v3.12.0](https://github.com/dtzp555-max/ocp/releases/tag/v3.12.0), opt-in). If you've ever watched your IDE die at the 60s idle mark during a long Claude tool-use pause — that's nginx/Cloudflare default behavior. OCP emits an SSE comment frame to keep the connection alive without polluting the response. ([PR #49](https://github.com/dtzp555-max/ocp/pull/49))
-- **`ocp-connect` IDE auto-config.** Detects Claude Code, Cursor, Cline, Continue.dev, opencode, and OpenClaw on the client machine and configures them in one command.
+- **`cli.js` alignment + CI guardrail.** LLM-assisted code drifts easily — it's tempting to invent plausible-looking endpoints that `cli.js` doesn't actually use. [`ALIGNMENT.md`](./ALIGNMENT.md) is binding: every endpoint OCP exposes must cite a `cli.js` line. The [`alignment.yml`](./.github/workflows/alignment.yml) CI workflow blocks PRs that introduce known-hallucinated tokens. The payoff is boring: your setup keeps working when `cli.js` ships its next minor.
+- **`models.json` single source of truth** (v3.11.0). Adding a model is one file edit; both `/v1/models` and the OpenClaw bootstrap derive from it. ([PR #30](https://github.com/dtzp555-max/ocp/pull/30))
 
 ### Comparison
 

setup.mjs

@@ -12,7 +12,7 @@
  *   4. Creates start.sh for easy launch
  *   5. Optionally starts the proxy
  */
-import { readFileSync, writeFileSync, existsSync, mkdirSync, unlinkSync } from "node:fs";
+import { readFileSync, writeFileSync, existsSync, mkdirSync, unlinkSync, readdirSync } from "node:fs";
 import { execSync } from "node:child_process";
 import { join, dirname } from "node:path";
 import { homedir } from "node:os";
@@ -107,11 +107,18 @@ try {
   warn("Make sure you're logged in: claude login");
 }
 
-// Check openclaw config
+// Check openclaw config (optional — OCP runs standalone without OpenClaw)
-if (!existsSync(CONFIG_PATH)) fail(`OpenClaw config not found at ${CONFIG_PATH}`);
+const OPENCLAW_PRESENT = existsSync(CONFIG_PATH);
+if (OPENCLAW_PRESENT) {
   log(`OpenClaw config: ${CONFIG_PATH}`);
+} else {
+  warn(`OpenClaw not detected at ${CONFIG_PATH} — skipping OpenClaw integration.`);
+  warn(`To register OCP with OpenClaw later, install OpenClaw and re-run \`node setup.mjs\`,`);
+  warn(`or run \`ocp update\` if OpenClaw is installed afterward.`);
+}
 
 // ── Step 2: Patch openclaw.json ─────────────────────────────────────────
+if (OPENCLAW_PRESENT) {
   console.log("\n📝 Configuring OpenClaw...\n");
 
   const config = readJSON(CONFIG_PATH);
@@ -175,8 +182,6 @@ const agentDirs = existsSync(agentsDir)
       })
     : [];
 
-import { readdirSync } from "node:fs";
-
   for (const agentId of agentDirs) {
     const apPath = join(agentsDir, agentId, "agent", "auth-profiles.json");
     try {
@@ -208,6 +213,7 @@ for (const agentId of agentDirs) {
   if (agentDirs.length === 0) {
     warn("No agent auth-profiles.json found — you may need to restart the gateway first");
   }
+}
 
 // ── Step 4: Create start.sh ─────────────────────────────────────────────
 console.log("\n🚀 Creating launcher...\n");
@@ -238,31 +244,46 @@ if (!DRY_RUN) {
 log(`Launcher: ${startPath}`);
 
 // ── Step 5: Summary ─────────────────────────────────────────────────────
-console.log(`
+const banner = [
-╔══════════════════════════════════════════════════════════════╗
+  `╔══════════════════════════════════════════════════════════════╗`,
-║                  Setup complete!                             ║
+  `║                  Setup complete!                             ║`,
-╠══════════════════════════════════════════════════════════════╣
+  `╠══════════════════════════════════════════════════════════════╣`,
-║                                                              ║
+  `║                                                              ║`,
-║  Provider: ${PROVIDER_NAME.padEnd(44)}║
+  `║  Provider: ${PROVIDER_NAME.padEnd(44)}║`,
-║  Port:     ${String(PORT).padEnd(44)}║
+  `║  Port:     ${String(PORT).padEnd(44)}║`,
-║  Models:   ${`see models.json (${MODELS.length} available)`.padEnd(44)}║
+  `║  Models:   ${`see models.json (${MODELS.length} available)`.padEnd(44)}║`,
-║  Default:  ${DEFAULT_MODEL_ID.padEnd(44)}║
+  `║  Default:  ${DEFAULT_MODEL_ID.padEnd(44)}║`,
-║                                                              ║
+  `║                                                              ║`,
-║  Start proxy:                                                ║
+  `║  Start proxy:                                                ║`,
-║    bash ${startPath.replace(HOME, "~").padEnd(50)}║
+  `║    bash ${startPath.replace(HOME, "~").padEnd(50)}║`,
-║                                                              ║
+  `║                                                              ║`,
-║  Or directly:                                                ║
+  `║  Or directly:                                                ║`,
-║    node ${serverPath.replace(HOME, "~").padEnd(49)}║
+  `║    node ${serverPath.replace(HOME, "~").padEnd(49)}║`,
-║                                                              ║
+  `║                                                              ║`,
-║  Set as default model in openclaw.json:                      ║
+];
-║    agents.defaults.model.primary =                           ║
+if (OPENCLAW_PRESENT) {
-║      "${PROVIDER_NAME}/${DEFAULT_MODEL_ID}"${" ".repeat(Math.max(0, 30 - PROVIDER_NAME.length - DEFAULT_MODEL_ID.length))}║
+  banner.push(
-║                                                              ║
+    `║  Set as default model in openclaw.json:                      ║`,
-║  Then restart gateway:                                       ║
+    `║    agents.defaults.model.primary =                           ║`,
-║    openclaw gateway restart                                  ║
+    `║      "${PROVIDER_NAME}/${DEFAULT_MODEL_ID}"${" ".repeat(Math.max(0, 30 - PROVIDER_NAME.length - DEFAULT_MODEL_ID.length))}║`,
-║                                                              ║
+    `║                                                              ║`,
-╚══════════════════════════════════════════════════════════════╝
+    `║  Then restart gateway:                                       ║`,
-`);
+    `║    openclaw gateway restart                                  ║`,
+    `║                                                              ║`,
+  );
+} else {
+  banner.push(
+    `║  OpenClaw not detected — running in standalone mode.         ║`,
+    `║  Point your IDE (Cline / Cursor / Continue / OpenCode /      ║`,
+    `║  Aider / OpenClaw) at:                                       ║`,
+    `║    http://${BIND_ADDRESS}:${String(PORT)}/v1${" ".repeat(Math.max(0, 47 - BIND_ADDRESS.length - String(PORT).length))}║`,
+    `║                                                              ║`,
+    `║  See README § "Client Setup" for per-IDE instructions.       ║`,
+    `║                                                              ║`,
+  );
+}
+banner.push(`╚══════════════════════════════════════════════════════════════╝`);
+console.log("\n" + banner.join("\n") + "\n");
 
 // ── Step 6: Optionally start ────────────────────────────────────────────
 if (!SKIP_START && !DRY_RUN) {