feat(curator): switch Hermes Curator to DeepSeek V4-Pro via deepseek_local adapter

A/B test (2026-05-05) showed DeepSeek V4-Pro is 2-3x faster and ~20x cheaper
than Sonnet for style/lexicon pattern analysis, with comparable quality.
Adds adapters/deepseek-paperclip-adapter/ package, documents adapter requirements
(env injection, run-id headers), updates CLAUDE.md with adapter integration notes,
and records lessons from ערר 1200-25 (block order for 1xxx, "להלן מתוך" pattern,
expanded factual background, bridge planning analysis, flat heading structure).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

adapters/deepseek-paperclip-adapter/dist/server/test.js

@@ -0,0 +1,164 @@
+/**
+ * Environment test for the DeepSeek (via Hermes) adapter.
+ */
+
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import fs from "node:fs/promises";
+import path from "node:path";
+import {
+  HERMES_CLI,
+  ADAPTER_TYPE,
+  DEFAULT_PROFILE_HOME,
+} from "../shared/constants.js";
+
+const execFileAsync = promisify(execFile);
+
+function asString(v) {
+  return typeof v === "string" ? v : undefined;
+}
+
+async function checkCliInstalled(command) {
+  try {
+    await execFileAsync(command, ["--version"], { timeout: 10_000 });
+    return null;
+  } catch (err) {
+    if (err && err.code === "ENOENT") {
+      return {
+        level: "error",
+        message: `Hermes CLI "${command}" not found in PATH`,
+        hint: "Install Hermes Agent: pip install hermes-agent",
+        code: "deepseek_hermes_cli_not_found",
+      };
+    }
+    return null;
+  }
+}
+
+async function checkProfile(profileHome) {
+  try {
+    const stat = await fs.stat(profileHome);
+    if (!stat.isDirectory()) {
+      return {
+        level: "error",
+        message: `Profile path is not a directory: ${profileHome}`,
+        hint: "Create the directory or override hermesProfileHome in adapter config.",
+        code: "deepseek_profile_not_dir",
+      };
+    }
+  } catch {
+    return {
+      level: "error",
+      message: `Hermes profile dir does not exist: ${profileHome}`,
+      hint: "Create the profile dir with config.yaml + .env (DEEPSEEK_API_KEY).",
+      code: "deepseek_profile_missing",
+    };
+  }
+
+  const configPath = path.join(profileHome, "config.yaml");
+  try {
+    await fs.stat(configPath);
+  } catch {
+    return {
+      level: "error",
+      message: `Profile is missing config.yaml: ${configPath}`,
+      hint: "Add config.yaml with model.default + model.base_url + model.key_env.",
+      code: "deepseek_profile_no_config",
+    };
+  }
+
+  return {
+    level: "info",
+    message: `Profile resolved: ${profileHome}`,
+    code: "deepseek_profile_ok",
+  };
+}
+
+async function checkApiKey(profileHome, configEnv) {
+  // 1. config.env (resolved by Paperclip from secrets)
+  if (configEnv && typeof configEnv === "object" && asString(configEnv.DEEPSEEK_API_KEY)) {
+    return {
+      level: "info",
+      message: "DEEPSEEK_API_KEY found in adapter env config",
+      code: "deepseek_api_key_in_config",
+    };
+  }
+  // 2. Profile-local .env
+  try {
+    const envFile = path.join(profileHome, ".env");
+    const text = await fs.readFile(envFile, "utf-8");
+    if (/^\s*DEEPSEEK_API_KEY=/m.test(text)) {
+      return {
+        level: "info",
+        message: `DEEPSEEK_API_KEY found in ${envFile}`,
+        code: "deepseek_api_key_in_profile",
+      };
+    }
+  } catch {
+    // ignore
+  }
+  // 3. Process env
+  if (process.env.DEEPSEEK_API_KEY) {
+    return {
+      level: "info",
+      message: "DEEPSEEK_API_KEY found in Paperclip process env",
+      code: "deepseek_api_key_in_process",
+    };
+  }
+  return {
+    level: "error",
+    message: "DEEPSEEK_API_KEY not found in adapter env, profile .env, or process env",
+    hint: "Add DEEPSEEK_API_KEY to <HERMES_HOME>/.env or to the agent's env secrets.",
+    code: "deepseek_api_key_missing",
+  };
+}
+
+export async function testEnvironment(ctx) {
+  const config = ctx.config ?? {};
+  const command = asString(config.hermesCommand) || HERMES_CLI;
+  const profileHome = asString(config.hermesProfileHome) || DEFAULT_PROFILE_HOME;
+  const checks = [];
+
+  const cliCheck = await checkCliInstalled(command);
+  if (cliCheck) {
+    checks.push(cliCheck);
+    if (cliCheck.level === "error") {
+      return {
+        adapterType: ADAPTER_TYPE,
+        status: "fail",
+        checks,
+        testedAt: new Date().toISOString(),
+      };
+    }
+  }
+
+  const profileCheck = await checkProfile(profileHome);
+  checks.push(profileCheck);
+  if (profileCheck.level === "error") {
+    return {
+      adapterType: ADAPTER_TYPE,
+      status: "fail",
+      checks,
+      testedAt: new Date().toISOString(),
+    };
+  }
+
+  const apiKeyCheck = await checkApiKey(profileHome, config.env);
+  checks.push(apiKeyCheck);
+
+  const model = asString(config.model);
+  checks.push({
+    level: "info",
+    message: model ? `Model: ${model}` : "Using profile default model",
+    code: "deepseek_model",
+  });
+
+  const hasErrors = checks.some((c) => c.level === "error");
+  const hasWarnings = checks.some((c) => c.level === "warn");
+  return {
+    adapterType: ADAPTER_TYPE,
+    status: hasErrors ? "fail" : hasWarnings ? "warn" : "pass",
+    checks,
+    testedAt: new Date().toISOString(),
+  };
+}