6 files changed, 401 insertions, 401 deletions

diff --git a/src/features/conversation-cache/cache.test.ts b/src/features/conversation-cache/cache.test.ts
index 89e81b8..ce1c60c 100644
--- a/src/features/conversation-cache/cache.test.ts
+++ b/src/features/conversation-cache/cache.test.ts
@@ -4,9 +4,9 @@ import { createConversationCache } from "./cache";
 import type { ConversationCacheIndexEntry, ConversationChunkStore } from "./types";
 
 const chunk = (seq: number, role: "user" | "assistant" = "user"): StoredChunk => ({
-	seq,
-	role,
-	chunk: { type: "text", text: `chunk-${seq}` },
+  seq,
+  role,
+  chunk: { type: "text", text: `chunk-${seq}` },
 });
 
 /**
@@ -14,184 +14,184 @@ const chunk = (seq: number, role: "user" | "assistant" = "user"): StoredChunk =>
  * An outermost edge: simulates the storage port without any real I/O.
  */
 function createFakeStore(): ConversationChunkStore {
-	const store = new Map<string, StoredChunk[]>();
-
-	return {
-		async load(conversationId) {
-			return store.get(conversationId) ?? [];
-		},
-
-		async append(conversationId, chunks) {
-			const existing = store.get(conversationId) ?? [];
-			const existingSeqs = new Set(existing.map((c) => c.seq));
-			const toAdd = chunks.filter((c) => !existingSeqs.has(c.seq));
-			store.set(
-				conversationId,
-				[...existing, ...toAdd].sort((a, b) => a.seq - b.seq),
-			);
-		},
-
-		async delete(conversationId) {
-			store.delete(conversationId);
-		},
-
-		async index() {
-			const entries: ConversationCacheIndexEntry[] = [];
-			for (const [id, chunks] of store) {
-				if (chunks.length === 0) continue;
-				let maxSeq = 0;
-				for (const c of chunks) {
-					if (c.seq > maxSeq) maxSeq = c.seq;
-				}
-				entries.push({
-					conversationId: id,
-					chunkCount: chunks.length,
-					maxSeq,
-				});
-			}
-			return entries;
-		},
-	};
+  const store = new Map<string, StoredChunk[]>();
+
+  return {
+    async load(conversationId) {
+      return store.get(conversationId) ?? [];
+    },
+
+    async append(conversationId, chunks) {
+      const existing = store.get(conversationId) ?? [];
+      const existingSeqs = new Set(existing.map((c) => c.seq));
+      const toAdd = chunks.filter((c) => !existingSeqs.has(c.seq));
+      store.set(
+        conversationId,
+        [...existing, ...toAdd].sort((a, b) => a.seq - b.seq),
+      );
+    },
+
+    async delete(conversationId) {
+      store.delete(conversationId);
+    },
+
+    async index() {
+      const entries: ConversationCacheIndexEntry[] = [];
+      for (const [id, chunks] of store) {
+        if (chunks.length === 0) continue;
+        let maxSeq = 0;
+        for (const c of chunks) {
+          if (c.seq > maxSeq) maxSeq = c.seq;
+        }
+        entries.push({
+          conversationId: id,
+          chunkCount: chunks.length,
+          maxSeq,
+        });
+      }
+      return entries;
+    },
+  };
 }
 
 describe("cache.load", () => {
-	it("returns stored chunks", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-		await store.append("conv-1", [chunk(1), chunk(2)]);
-		const result = await cache.load("conv-1");
-		expect(result).toEqual([chunk(1), chunk(2)]);
-	});
-
-	it("returns empty array for absent conversation", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-		const result = await cache.load("nonexistent");
-		expect(result).toEqual([]);
-	});
+  it("returns stored chunks", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+    await store.append("conv-1", [chunk(1), chunk(2)]);
+    const result = await cache.load("conv-1");
+    expect(result).toEqual([chunk(1), chunk(2)]);
+  });
+
+  it("returns empty array for absent conversation", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+    const result = await cache.load("nonexistent");
+    expect(result).toEqual([]);
+  });
 });
 
 describe("cache.commit", () => {
-	it("appends only new chunks", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-		await store.append("conv-1", [chunk(1), chunk(2)]);
-
-		const merged = await cache.commit("conv-1", [chunk(2), chunk(3)]);
-		expect(merged).toEqual([chunk(1), chunk(2), chunk(3)]);
-
-		// Verify store has all chunks
-		const stored = await store.load("conv-1");
-		expect(stored).toEqual([chunk(1), chunk(2), chunk(3)]);
-	});
-
-	it("returns full merged result", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-
-		const merged = await cache.commit("conv-1", [chunk(3), chunk(1)]);
-		expect(merged).toEqual([chunk(1), chunk(3)]);
-	});
-
-	it("is idempotent — re-committing same chunks is a no-op", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-
-		await cache.commit("conv-1", [chunk(1), chunk(2)]);
-		const merged = await cache.commit("conv-1", [chunk(1), chunk(2)]);
-		expect(merged).toEqual([chunk(1), chunk(2)]);
-
-		const stored = await store.load("conv-1");
-		expect(stored).toEqual([chunk(1), chunk(2)]);
-	});
+  it("appends only new chunks", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+    await store.append("conv-1", [chunk(1), chunk(2)]);
+
+    const merged = await cache.commit("conv-1", [chunk(2), chunk(3)]);
+    expect(merged).toEqual([chunk(1), chunk(2), chunk(3)]);
+
+    // Verify store has all chunks
+    const stored = await store.load("conv-1");
+    expect(stored).toEqual([chunk(1), chunk(2), chunk(3)]);
+  });
+
+  it("returns full merged result", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+
+    const merged = await cache.commit("conv-1", [chunk(3), chunk(1)]);
+    expect(merged).toEqual([chunk(1), chunk(3)]);
+  });
+
+  it("is idempotent — re-committing same chunks is a no-op", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+
+    await cache.commit("conv-1", [chunk(1), chunk(2)]);
+    const merged = await cache.commit("conv-1", [chunk(1), chunk(2)]);
+    expect(merged).toEqual([chunk(1), chunk(2)]);
+
+    const stored = await store.load("conv-1");
+    expect(stored).toEqual([chunk(1), chunk(2)]);
+  });
 });
 
 describe("cache.sinceSeq", () => {
-	it("returns max seq from cache", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-		await store.append("conv-1", [chunk(1), chunk(5), chunk(3)]);
-		expect(await cache.sinceSeq("conv-1")).toBe(5);
-	});
-
-	it("returns 0 for empty conversation", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
-		expect(await cache.sinceSeq("conv-1")).toBe(0);
-	});
+  it("returns max seq from cache", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+    await store.append("conv-1", [chunk(1), chunk(5), chunk(3)]);
+    expect(await cache.sinceSeq("conv-1")).toBe(5);
+  });
+
+  it("returns 0 for empty conversation", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
+    expect(await cache.sinceSeq("conv-1")).toBe(0);
+  });
 });
 
 describe("cache.evictIfOverBudget", () => {
-	it("deletes selected conversations", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store, { maxChunks: 5 });
-
-		await store.append("a", [chunk(1), chunk(2)]);
-		await store.append("b", [chunk(1), chunk(2)]);
-		await store.append("c", [chunk(1)]);
-
-		// Total = 5, max = 5, under budget
-		const evicted = await cache.evictIfOverBudget(null);
-		expect(evicted).toEqual([]);
-
-		// Add more to go over budget
-		await store.append("d", [chunk(1), chunk(2), chunk(3)]);
-		// Total = 8, max = 5, need to evict 3+ chunks
-
-		const evicted2 = await cache.evictIfOverBudget(null);
-		expect(evicted2.length).toBeGreaterThan(0);
-
-		// Verify evicted conversations are deleted
-		for (const id of evicted2) {
-			expect(await store.load(id)).toEqual([]);
-		}
-	});
-
-	it("never evicts the active conversation", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store, { maxChunks: 3 });
-
-		await store.append("active", [chunk(1), chunk(2), chunk(3)]);
-		await store.append("other", [chunk(1), chunk(2)]);
-
-		// Total = 5, max = 3, need to evict 2+ chunks
-		const evicted = await cache.evictIfOverBudget("active");
-		expect(evicted).not.toContain("active");
-		expect(evicted).toContain("other");
-	});
-
-	it("returns empty when under budget", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store, { maxChunks: 100 });
-
-		await store.append("a", [chunk(1)]);
-		await store.append("b", [chunk(1)]);
-
-		const evicted = await cache.evictIfOverBudget(null);
-		expect(evicted).toEqual([]);
-	});
+  it("deletes selected conversations", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store, { maxChunks: 5 });
+
+    await store.append("a", [chunk(1), chunk(2)]);
+    await store.append("b", [chunk(1), chunk(2)]);
+    await store.append("c", [chunk(1)]);
+
+    // Total = 5, max = 5, under budget
+    const evicted = await cache.evictIfOverBudget(null);
+    expect(evicted).toEqual([]);
+
+    // Add more to go over budget
+    await store.append("d", [chunk(1), chunk(2), chunk(3)]);
+    // Total = 8, max = 5, need to evict 3+ chunks
+
+    const evicted2 = await cache.evictIfOverBudget(null);
+    expect(evicted2.length).toBeGreaterThan(0);
+
+    // Verify evicted conversations are deleted
+    for (const id of evicted2) {
+      expect(await store.load(id)).toEqual([]);
+    }
+  });
+
+  it("never evicts the active conversation", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store, { maxChunks: 3 });
+
+    await store.append("active", [chunk(1), chunk(2), chunk(3)]);
+    await store.append("other", [chunk(1), chunk(2)]);
+
+    // Total = 5, max = 3, need to evict 2+ chunks
+    const evicted = await cache.evictIfOverBudget("active");
+    expect(evicted).not.toContain("active");
+    expect(evicted).toContain("other");
+  });
+
+  it("returns empty when under budget", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store, { maxChunks: 100 });
+
+    await store.append("a", [chunk(1)]);
+    await store.append("b", [chunk(1)]);
+
+    const evicted = await cache.evictIfOverBudget(null);
+    expect(evicted).toEqual([]);
+  });
 });
 
 describe("cache.delete", () => {
-	it("removes the conversation from the store", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
+  it("removes the conversation from the store", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
 
-		await store.append("conv-1", [chunk(1), chunk(2)]);
-		await cache.delete("conv-1");
+    await store.append("conv-1", [chunk(1), chunk(2)]);
+    await cache.delete("conv-1");
 
-		const stored = await store.load("conv-1");
-		expect(stored).toEqual([]);
-	});
+    const stored = await store.load("conv-1");
+    expect(stored).toEqual([]);
+  });
 
-	it("then load returns []", async () => {
-		const store = createFakeStore();
-		const cache = createConversationCache(store);
+  it("then load returns []", async () => {
+    const store = createFakeStore();
+    const cache = createConversationCache(store);
 
-		await cache.commit("conv-1", [chunk(1), chunk(2), chunk(3)]);
-		await cache.delete("conv-1");
+    await cache.commit("conv-1", [chunk(1), chunk(2), chunk(3)]);
+    await cache.delete("conv-1");
 
-		const result = await cache.load("conv-1");
-		expect(result).toEqual([]);
-	});
+    const result = await cache.load("conv-1");
+    expect(result).toEqual([]);
+  });
 });
diff --git a/src/features/conversation-cache/cache.ts b/src/features/conversation-cache/cache.ts
index 3d5743a..4953944 100644
--- a/src/features/conversation-cache/cache.ts
+++ b/src/features/conversation-cache/cache.ts
@@ -3,31 +3,31 @@ import { nextSinceSeq, reconcileCache, selectEvictions } from "./logic";
 import type { ConversationChunkStore } from "./types";
 
 export interface ConversationCache {
-	/** Load all cached chunks for a conversation. */
-	load(conversationId: string): Promise<readonly StoredChunk[]>;
+  /** Load all cached chunks for a conversation. */
+  load(conversationId: string): Promise<readonly StoredChunk[]>;
 
-	/**
-	 * Load + reconcile + append new chunks.
-	 * Returns the merged cache (the new authoritative cache for this conversation).
-	 */
-	commit(conversationId: string, incoming: readonly StoredChunk[]): Promise<readonly StoredChunk[]>;
+  /**
+   * Load + reconcile + append new chunks.
+   * Returns the merged cache (the new authoritative cache for this conversation).
+   */
+  commit(conversationId: string, incoming: readonly StoredChunk[]): Promise<readonly StoredChunk[]>;
 
-	/** Return the `?sinceSeq=` cursor for the next incremental sync. */
-	sinceSeq(conversationId: string): Promise<number>;
+  /** Return the `?sinceSeq=` cursor for the next incremental sync. */
+  sinceSeq(conversationId: string): Promise<number>;
 
-	/**
-	 * Evict conversations over budget.
-	 * Returns the evicted conversationIds.
-	 */
-	evictIfOverBudget(activeConversationId: string | null): Promise<readonly string[]>;
+  /**
+   * Evict conversations over budget.
+   * Returns the evicted conversationIds.
+   */
+  evictIfOverBudget(activeConversationId: string | null): Promise<readonly string[]>;
 
-	/** Delete all cached data for a single conversation (local forget). */
-	delete(conversationId: string): Promise<void>;
+  /** Delete all cached data for a single conversation (local forget). */
+  delete(conversationId: string): Promise<void>;
 }
 
 export interface ConversationCacheOptions {
-	/** Maximum total chunks across all conversations before eviction triggers. */
-	readonly maxChunks?: number;
+  /** Maximum total chunks across all conversations before eviction triggers. */
+  readonly maxChunks?: number;
 }
 
 const DEFAULT_MAX_CHUNKS = 10_000;
@@ -38,41 +38,41 @@ const DEFAULT_MAX_CHUNKS = 10_000;
  * The ONLY impurity is the injected `store`; all logic delegates to pure functions.
  */
 export function createConversationCache(
-	store: ConversationChunkStore,
-	opts?: ConversationCacheOptions,
+  store: ConversationChunkStore,
+  opts?: ConversationCacheOptions,
 ): ConversationCache {
-	const maxChunks = opts?.maxChunks ?? DEFAULT_MAX_CHUNKS;
+  const maxChunks = opts?.maxChunks ?? DEFAULT_MAX_CHUNKS;
 
-	return {
-		async load(conversationId) {
-			return store.load(conversationId);
-		},
+  return {
+    async load(conversationId) {
+      return store.load(conversationId);
+    },
 
-		async commit(conversationId, incoming) {
-			const cached = await store.load(conversationId);
-			const { merged, toAppend } = reconcileCache(cached, incoming);
-			if (toAppend.length > 0) {
-				await store.append(conversationId, toAppend);
-			}
-			return merged;
-		},
+    async commit(conversationId, incoming) {
+      const cached = await store.load(conversationId);
+      const { merged, toAppend } = reconcileCache(cached, incoming);
+      if (toAppend.length > 0) {
+        await store.append(conversationId, toAppend);
+      }
+      return merged;
+    },
 
-		async sinceSeq(conversationId) {
-			const cached = await store.load(conversationId);
-			return nextSinceSeq(cached);
-		},
+    async sinceSeq(conversationId) {
+      const cached = await store.load(conversationId);
+      return nextSinceSeq(cached);
+    },
 
-		async evictIfOverBudget(activeConversationId) {
-			const idx = await store.index();
-			const toEvict = selectEvictions(idx, { maxChunks, activeConversationId });
-			for (const id of toEvict) {
-				await store.delete(id);
-			}
-			return toEvict;
-		},
+    async evictIfOverBudget(activeConversationId) {
+      const idx = await store.index();
+      const toEvict = selectEvictions(idx, { maxChunks, activeConversationId });
+      for (const id of toEvict) {
+        await store.delete(id);
+      }
+      return toEvict;
+    },
 
-		async delete(conversationId) {
-			await store.delete(conversationId);
-		},
-	};
+    async delete(conversationId) {
+      await store.delete(conversationId);
+    },
+  };
 }
diff --git a/src/features/conversation-cache/index.ts b/src/features/conversation-cache/index.ts
index 32e32d9..25e2af7 100644
--- a/src/features/conversation-cache/index.ts
+++ b/src/features/conversation-cache/index.ts
@@ -2,13 +2,13 @@ export type { ConversationCache, ConversationCacheOptions } from "./cache";
 export { createConversationCache } from "./cache";
 export { nextSinceSeq, reconcileCache, selectEvictions } from "./logic";
 export type {
-	ConversationCacheIndexEntry,
-	ConversationChunkStore,
-	ReconcileResult,
+  ConversationCacheIndexEntry,
+  ConversationChunkStore,
+  ReconcileResult,
 } from "./types";
 
 /** Public module manifest — aggregated by the shell's "Loaded Modules" view. */
 export const manifest = {
-	name: "conversation-cache",
-	description: "IndexedDB-backed chunk cache with reconciliation",
+  name: "conversation-cache",
+  description: "IndexedDB-backed chunk cache with reconciliation",
 } as const;
diff --git a/src/features/conversation-cache/logic.test.ts b/src/features/conversation-cache/logic.test.ts
index 858460a..880c32e 100644
--- a/src/features/conversation-cache/logic.test.ts
+++ b/src/features/conversation-cache/logic.test.ts
@@ -4,137 +4,137 @@ import { nextSinceSeq, reconcileCache, selectEvictions } from "./logic";
 import type { ConversationCacheIndexEntry } from "./types";
 
 const chunk = (seq: number, role: "user" | "assistant" = "user"): StoredChunk => ({
-	seq,
-	role,
-	chunk: { type: "text", text: `chunk-${seq}` },
+  seq,
+  role,
+  chunk: { type: "text", text: `chunk-${seq}` },
 });
 
 describe("reconcileCache", () => {
-	it("merges and dedupes by seq", () => {
-		const cached = [chunk(1), chunk(2)];
-		const incoming = [chunk(2), chunk(3)];
-		const result = reconcileCache(cached, incoming);
-		expect(result.merged).toEqual([chunk(1), chunk(2), chunk(3)]);
-	});
-
-	it("toAppend excludes already-cached seqs", () => {
-		const cached = [chunk(1), chunk(2)];
-		const incoming = [chunk(2), chunk(3)];
-		const result = reconcileCache(cached, incoming);
-		expect(result.toAppend).toEqual([chunk(3)]);
-	});
-
-	it("tolerates out-of-order incoming", () => {
-		const cached = [chunk(1)];
-		const incoming = [chunk(5), chunk(3), chunk(2)];
-		const result = reconcileCache(cached, incoming);
-		expect(result.merged).toEqual([chunk(1), chunk(2), chunk(3), chunk(5)]);
-		expect(result.toAppend).toEqual([chunk(5), chunk(3), chunk(2)]);
-	});
-
-	it("returns empty merged and toAppend when both inputs are empty", () => {
-		const result = reconcileCache([], []);
-		expect(result.merged).toEqual([]);
-		expect(result.toAppend).toEqual([]);
-	});
-
-	it("handles empty cached with incoming", () => {
-		const incoming = [chunk(3), chunk(1)];
-		const result = reconcileCache([], incoming);
-		expect(result.merged).toEqual([chunk(1), chunk(3)]);
-		expect(result.toAppend).toEqual([chunk(3), chunk(1)]);
-	});
-
-	it("handles cached with empty incoming", () => {
-		const cached = [chunk(1), chunk(2)];
-		const result = reconcileCache(cached, []);
-		expect(result.merged).toEqual([chunk(1), chunk(2)]);
-		expect(result.toAppend).toEqual([]);
-	});
-
-	it("is idempotent — re-reconciling same incoming produces same result", () => {
-		const cached = [chunk(1)];
-		const incoming = [chunk(2), chunk(3)];
-		const first = reconcileCache(cached, incoming);
-		const second = reconcileCache(first.merged, incoming);
-		expect(second.merged).toEqual(first.merged);
-		expect(second.toAppend).toEqual([]);
-	});
+  it("merges and dedupes by seq", () => {
+    const cached = [chunk(1), chunk(2)];
+    const incoming = [chunk(2), chunk(3)];
+    const result = reconcileCache(cached, incoming);
+    expect(result.merged).toEqual([chunk(1), chunk(2), chunk(3)]);
+  });
+
+  it("toAppend excludes already-cached seqs", () => {
+    const cached = [chunk(1), chunk(2)];
+    const incoming = [chunk(2), chunk(3)];
+    const result = reconcileCache(cached, incoming);
+    expect(result.toAppend).toEqual([chunk(3)]);
+  });
+
+  it("tolerates out-of-order incoming", () => {
+    const cached = [chunk(1)];
+    const incoming = [chunk(5), chunk(3), chunk(2)];
+    const result = reconcileCache(cached, incoming);
+    expect(result.merged).toEqual([chunk(1), chunk(2), chunk(3), chunk(5)]);
+    expect(result.toAppend).toEqual([chunk(5), chunk(3), chunk(2)]);
+  });
+
+  it("returns empty merged and toAppend when both inputs are empty", () => {
+    const result = reconcileCache([], []);
+    expect(result.merged).toEqual([]);
+    expect(result.toAppend).toEqual([]);
+  });
+
+  it("handles empty cached with incoming", () => {
+    const incoming = [chunk(3), chunk(1)];
+    const result = reconcileCache([], incoming);
+    expect(result.merged).toEqual([chunk(1), chunk(3)]);
+    expect(result.toAppend).toEqual([chunk(3), chunk(1)]);
+  });
+
+  it("handles cached with empty incoming", () => {
+    const cached = [chunk(1), chunk(2)];
+    const result = reconcileCache(cached, []);
+    expect(result.merged).toEqual([chunk(1), chunk(2)]);
+    expect(result.toAppend).toEqual([]);
+  });
+
+  it("is idempotent — re-reconciling same incoming produces same result", () => {
+    const cached = [chunk(1)];
+    const incoming = [chunk(2), chunk(3)];
+    const first = reconcileCache(cached, incoming);
+    const second = reconcileCache(first.merged, incoming);
+    expect(second.merged).toEqual(first.merged);
+    expect(second.toAppend).toEqual([]);
+  });
 });
 
 describe("nextSinceSeq", () => {
-	it("returns max seq", () => {
-		const cached = [chunk(1), chunk(5), chunk(3)];
-		expect(nextSinceSeq(cached)).toBe(5);
-	});
-
-	it("returns 0 when empty", () => {
-		expect(nextSinceSeq([])).toBe(0);
-	});
-
-	it("returns single seq for single chunk", () => {
-		expect(nextSinceSeq([chunk(42)])).toBe(42);
-	});
+  it("returns max seq", () => {
+    const cached = [chunk(1), chunk(5), chunk(3)];
+    expect(nextSinceSeq(cached)).toBe(5);
+  });
+
+  it("returns 0 when empty", () => {
+    expect(nextSinceSeq([])).toBe(0);
+  });
+
+  it("returns single seq for single chunk", () => {
+    expect(nextSinceSeq([chunk(42)])).toBe(42);
+  });
 });
 
 describe("selectEvictions", () => {
-	it("never evicts the active conversation", () => {
-		const index: ConversationCacheIndexEntry[] = [
-			{ conversationId: "active", chunkCount: 100, maxSeq: 100, lastAccess: 1000 },
-			{ conversationId: "other", chunkCount: 50, maxSeq: 50, lastAccess: 1 },
-		];
-		const result = selectEvictions(index, { maxChunks: 50, activeConversationId: "active" });
-		expect(result).not.toContain("active");
-		expect(result).toContain("other");
-	});
-
-	it("evicts LRU until under budget", () => {
-		const index: ConversationCacheIndexEntry[] = [
-			{ conversationId: "a", chunkCount: 30, maxSeq: 30, lastAccess: 100 },
-			{ conversationId: "b", chunkCount: 30, maxSeq: 30, lastAccess: 50 },
-			{ conversationId: "c", chunkCount: 30, maxSeq: 30, lastAccess: 200 },
-			{ conversationId: "d", chunkCount: 30, maxSeq: 30, lastAccess: 10 },
-		];
-		// Total = 120, max = 60, need to evict 60+ chunks
-		// LRU order: d(10), b(50), a(100), c(200)
-		const result = selectEvictions(index, { maxChunks: 60, activeConversationId: null });
-		expect(result).toEqual(["d", "b"]);
-	});
-
-	it("is a no-op under budget", () => {
-		const index: ConversationCacheIndexEntry[] = [
-			{ conversationId: "a", chunkCount: 10, maxSeq: 10, lastAccess: 100 },
-			{ conversationId: "b", chunkCount: 10, maxSeq: 10, lastAccess: 50 },
-		];
-		const result = selectEvictions(index, { maxChunks: 100, activeConversationId: null });
-		expect(result).toEqual([]);
-	});
-
-	it("returns empty for empty index", () => {
-		const result = selectEvictions([], { maxChunks: 100, activeConversationId: null });
-		expect(result).toEqual([]);
-	});
-
-	it("tie-breaks by smaller maxSeq when lastAccess is equal", () => {
-		const index: ConversationCacheIndexEntry[] = [
-			{ conversationId: "a", chunkCount: 30, maxSeq: 100, lastAccess: 50 },
-			{ conversationId: "b", chunkCount: 30, maxSeq: 50, lastAccess: 50 },
-			{ conversationId: "c", chunkCount: 30, maxSeq: 200, lastAccess: 50 },
-		];
-		// Total = 90, max = 60, need to evict 30+ chunks
-		// All have same lastAccess, tie-break by maxSeq: b(50), a(100), c(200)
-		const result = selectEvictions(index, { maxChunks: 60, activeConversationId: null });
-		expect(result).toEqual(["b"]);
-	});
-
-	it("handles missing lastAccess (treated as 0)", () => {
-		const index: ConversationCacheIndexEntry[] = [
-			{ conversationId: "a", chunkCount: 30, maxSeq: 30, lastAccess: 100 },
-			{ conversationId: "b", chunkCount: 30, maxSeq: 30 },
-		];
-		// Total = 60, max = 30, need to evict 30+ chunks
-		// b has no lastAccess (0), a has 100
-		const result = selectEvictions(index, { maxChunks: 30, activeConversationId: null });
-		expect(result).toEqual(["b"]);
-	});
+  it("never evicts the active conversation", () => {
+    const index: ConversationCacheIndexEntry[] = [
+      { conversationId: "active", chunkCount: 100, maxSeq: 100, lastAccess: 1000 },
+      { conversationId: "other", chunkCount: 50, maxSeq: 50, lastAccess: 1 },
+    ];
+    const result = selectEvictions(index, { maxChunks: 50, activeConversationId: "active" });
+    expect(result).not.toContain("active");
+    expect(result).toContain("other");
+  });
+
+  it("evicts LRU until under budget", () => {
+    const index: ConversationCacheIndexEntry[] = [
+      { conversationId: "a", chunkCount: 30, maxSeq: 30, lastAccess: 100 },
+      { conversationId: "b", chunkCount: 30, maxSeq: 30, lastAccess: 50 },
+      { conversationId: "c", chunkCount: 30, maxSeq: 30, lastAccess: 200 },
+      { conversationId: "d", chunkCount: 30, maxSeq: 30, lastAccess: 10 },
+    ];
+    // Total = 120, max = 60, need to evict 60+ chunks
+    // LRU order: d(10), b(50), a(100), c(200)
+    const result = selectEvictions(index, { maxChunks: 60, activeConversationId: null });
+    expect(result).toEqual(["d", "b"]);
+  });
+
+  it("is a no-op under budget", () => {
+    const index: ConversationCacheIndexEntry[] = [
+      { conversationId: "a", chunkCount: 10, maxSeq: 10, lastAccess: 100 },
+      { conversationId: "b", chunkCount: 10, maxSeq: 10, lastAccess: 50 },
+    ];
+    const result = selectEvictions(index, { maxChunks: 100, activeConversationId: null });
+    expect(result).toEqual([]);
+  });
+
+  it("returns empty for empty index", () => {
+    const result = selectEvictions([], { maxChunks: 100, activeConversationId: null });
+    expect(result).toEqual([]);
+  });
+
+  it("tie-breaks by smaller maxSeq when lastAccess is equal", () => {
+    const index: ConversationCacheIndexEntry[] = [
+      { conversationId: "a", chunkCount: 30, maxSeq: 100, lastAccess: 50 },
+      { conversationId: "b", chunkCount: 30, maxSeq: 50, lastAccess: 50 },
+      { conversationId: "c", chunkCount: 30, maxSeq: 200, lastAccess: 50 },
+    ];
+    // Total = 90, max = 60, need to evict 30+ chunks
+    // All have same lastAccess, tie-break by maxSeq: b(50), a(100), c(200)
+    const result = selectEvictions(index, { maxChunks: 60, activeConversationId: null });
+    expect(result).toEqual(["b"]);
+  });
+
+  it("handles missing lastAccess (treated as 0)", () => {
+    const index: ConversationCacheIndexEntry[] = [
+      { conversationId: "a", chunkCount: 30, maxSeq: 30, lastAccess: 100 },
+      { conversationId: "b", chunkCount: 30, maxSeq: 30 },
+    ];
+    // Total = 60, max = 30, need to evict 30+ chunks
+    // b has no lastAccess (0), a has 100
+    const result = selectEvictions(index, { maxChunks: 30, activeConversationId: null });
+    expect(result).toEqual(["b"]);
+  });
 });
diff --git a/src/features/conversation-cache/logic.ts b/src/features/conversation-cache/logic.ts
index 4a4479e..3cb23e2 100644
--- a/src/features/conversation-cache/logic.ts
+++ b/src/features/conversation-cache/logic.ts
@@ -9,24 +9,24 @@ import type { ConversationCacheIndexEntry, ReconcileResult } from "./types";
  * (exactly what to persist). Idempotent; tolerant of out-of-order/overlapping `incoming`.
  */
 export function reconcileCache(
-	cached: readonly StoredChunk[],
-	incoming: readonly StoredChunk[],
+  cached: readonly StoredChunk[],
+  incoming: readonly StoredChunk[],
 ): ReconcileResult {
-	const seen = new Set<number>();
-	for (const chunk of cached) {
-		seen.add(chunk.seq);
-	}
+  const seen = new Set<number>();
+  for (const chunk of cached) {
+    seen.add(chunk.seq);
+  }
 
-	const toAppend: StoredChunk[] = [];
-	for (const chunk of incoming) {
-		if (!seen.has(chunk.seq)) {
-			toAppend.push(chunk);
-			seen.add(chunk.seq);
-		}
-	}
+  const toAppend: StoredChunk[] = [];
+  for (const chunk of incoming) {
+    if (!seen.has(chunk.seq)) {
+      toAppend.push(chunk);
+      seen.add(chunk.seq);
+    }
+  }
 
-	const merged = [...cached, ...toAppend].sort((a, b) => a.seq - b.seq);
-	return { merged, toAppend };
+  const merged = [...cached, ...toAppend].sort((a, b) => a.seq - b.seq);
+  return { merged, toAppend };
 }
 
 /**
@@ -34,12 +34,12 @@ export function reconcileCache(
  * This is the `?sinceSeq=` cursor for the next incremental sync.
  */
 export function nextSinceSeq(cached: readonly StoredChunk[]): number {
-	if (cached.length === 0) return 0;
-	let max = 0;
-	for (const chunk of cached) {
-		if (chunk.seq > max) max = chunk.seq;
-	}
-	return max;
+  if (cached.length === 0) return 0;
+  let max = 0;
+  for (const chunk of cached) {
+    if (chunk.seq > max) max = chunk.seq;
+  }
+  return max;
 }
 
 /**
@@ -50,28 +50,28 @@ export function nextSinceSeq(cached: readonly StoredChunk[]): number {
  * Returns [] when under budget.
  */
 export function selectEvictions(
-	index: readonly ConversationCacheIndexEntry[],
-	opts: { maxChunks: number; activeConversationId: string | null },
+  index: readonly ConversationCacheIndexEntry[],
+  opts: { maxChunks: number; activeConversationId: string | null },
 ): readonly string[] {
-	const totalChunks = index.reduce((sum, entry) => sum + entry.chunkCount, 0);
-	if (totalChunks <= opts.maxChunks) return [];
+  const totalChunks = index.reduce((sum, entry) => sum + entry.chunkCount, 0);
+  if (totalChunks <= opts.maxChunks) return [];
 
-	const candidates = index
-		.filter((entry) => entry.conversationId !== opts.activeConversationId)
-		.sort((a, b) => {
-			const aAccess = a.lastAccess ?? 0;
-			const bAccess = b.lastAccess ?? 0;
-			if (aAccess !== bAccess) return aAccess - bAccess;
-			return a.maxSeq - b.maxSeq;
-		});
+  const candidates = index
+    .filter((entry) => entry.conversationId !== opts.activeConversationId)
+    .sort((a, b) => {
+      const aAccess = a.lastAccess ?? 0;
+      const bAccess = b.lastAccess ?? 0;
+      if (aAccess !== bAccess) return aAccess - bAccess;
+      return a.maxSeq - b.maxSeq;
+    });
 
-	let remaining = totalChunks;
-	const evictions: string[] = [];
-	for (const entry of candidates) {
-		if (remaining <= opts.maxChunks) break;
-		evictions.push(entry.conversationId);
-		remaining -= entry.chunkCount;
-	}
+  let remaining = totalChunks;
+  const evictions: string[] = [];
+  for (const entry of candidates) {
+    if (remaining <= opts.maxChunks) break;
+    evictions.push(entry.conversationId);
+    remaining -= entry.chunkCount;
+  }
 
-	return evictions;
+  return evictions;
 }
diff --git a/src/features/conversation-cache/types.ts b/src/features/conversation-cache/types.ts
index 2a349cc..345ab71 100644
--- a/src/features/conversation-cache/types.ts
+++ b/src/features/conversation-cache/types.ts
@@ -2,10 +2,10 @@ import type { StoredChunk } from "@dispatch/wire";
 
 /** Metadata entry for a cached conversation, used by eviction logic. */
 export interface ConversationCacheIndexEntry {
-	readonly conversationId: string;
-	readonly chunkCount: number;
-	readonly maxSeq: number;
-	readonly lastAccess?: number;
+  readonly conversationId: string;
+  readonly chunkCount: number;
+  readonly maxSeq: number;
+  readonly lastAccess?: number;
 }
 
 /**
@@ -17,26 +17,26 @@ export interface ConversationCacheIndexEntry {
  * All methods MUST be idempotent on `seq`: re-appending an existing seq is a no-op.
  */
 export interface ConversationChunkStore {
-	/** Load all cached chunks for a conversation, seq-ordered. Returns [] if absent. */
-	load(conversationId: string): Promise<readonly StoredChunk[]>;
+  /** Load all cached chunks for a conversation, seq-ordered. Returns [] if absent. */
+  load(conversationId: string): Promise<readonly StoredChunk[]>;
 
-	/**
-	 * Append committed chunks to a conversation's cache.
-	 * MUST be idempotent on `seq`: re-appending an existing seq is a no-op.
-	 */
-	append(conversationId: string, chunks: readonly StoredChunk[]): Promise<void>;
+  /**
+   * Append committed chunks to a conversation's cache.
+   * MUST be idempotent on `seq`: re-appending an existing seq is a no-op.
+   */
+  append(conversationId: string, chunks: readonly StoredChunk[]): Promise<void>;
 
-	/** Delete all cached data for a conversation. */
-	delete(conversationId: string): Promise<void>;
+  /** Delete all cached data for a conversation. */
+  delete(conversationId: string): Promise<void>;
 
-	/** Return metadata for all cached conversations (for eviction). */
-	index(): Promise<readonly ConversationCacheIndexEntry[]>;
+  /** Return metadata for all cached conversations (for eviction). */
+  index(): Promise<readonly ConversationCacheIndexEntry[]>;
 }
 
 /** Result of reconciling cached chunks with incoming authoritative chunks. */
 export interface ReconcileResult {
-	/** The merged, deduplicated, seq-ordered chunk list. */
-	readonly merged: readonly StoredChunk[];
-	/** The subset of incoming chunks that need to be appended (not already cached). */
-	readonly toAppend: readonly StoredChunk[];
+  /** The merged, deduplicated, seq-ordered chunk list. */
+  readonly merged: readonly StoredChunk[];
+  /** The subset of incoming chunks that need to be appended (not already cached). */
+  readonly toAppend: readonly StoredChunk[];
 }