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/session-codec.js

@@ -0,0 +1,29 @@
+/**
+ * Session codec — Hermes uses a single sessionId for cross-heartbeat continuity
+ * via the --resume CLI flag. Same shape as the Hermes adapter.
+ */
+
+function readNonEmptyString(value) {
+  return typeof value === "string" && value.trim().length > 0 ? value.trim() : null;
+}
+
+export const sessionCodec = {
+  deserialize(raw) {
+    if (typeof raw !== "object" || raw === null || Array.isArray(raw)) return null;
+    const sessionId =
+      readNonEmptyString(raw.sessionId) ?? readNonEmptyString(raw.session_id);
+    if (!sessionId) return null;
+    return { sessionId };
+  },
+  serialize(params) {
+    if (!params) return null;
+    const sessionId =
+      readNonEmptyString(params.sessionId) ?? readNonEmptyString(params.session_id);
+    if (!sessionId) return null;
+    return { sessionId };
+  },
+  getDisplayId(params) {
+    if (!params) return null;
+    return readNonEmptyString(params.sessionId) ?? readNonEmptyString(params.session_id);
+  },
+};