makima: Add an optional memory system for directives (#59)

* feat: makima: Add an optional memory system for directives: Add directive_memories database table and migration

* feat: makima: Add an optional memory system for directives: Update directive skill documentation with memory commands

* feat: makima: Add an optional memory system for directives: Add repository functions for directive memory CRUD

* feat: makima: Add an optional memory system for directives: Add frontend API functions and types for directive memory

* feat: makima: Add an optional memory system for directives: Add Rust models for directive memory

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* feat: makima: Add an optional memory system for directives: Add memory panel to frontend DirectiveDetail component

* Merge remote-tracking branch 'origin/makima/makima--add-an-optional-memory-system-for-directiv-5de1e06d' into combined branch

* Merge remote-tracking branch 'origin/makima/makima--add-an-optional-memory-system-for-directiv-c8298c6c' into combined branch

* feat: makima: Add an optional memory system for directives: Create useMultiTaskSubscription hook for multi-output WebSocket streaming

* feat: makima: Add an optional memory system for directives: Create DirectiveLogStream component for stern-like multi-task output viewing

* feat: makima: Add an optional memory system for directives: Integrate log stream panel into directive detail page

1 files changed, 119 insertions, 0 deletions

diff --git a/makima/frontend/src/hooks/useDirectiveMemories.ts b/makima/frontend/src/hooks/useDirectiveMemories.ts
new file mode 100644
index 0000000..3844c44
--- /dev/null
+++ b/makima/frontend/src/hooks/useDirectiveMemories.ts
@@ -0,0 +1,119 @@
+import { useState, useEffect, useCallback } from "react";
+import {
+  type DirectiveMemoryEntry,
+  type DirectiveMemoryConfig,
+  type MemoryCategory,
+  type CreateDirectiveMemoryRequest,
+  getDirectiveMemoryConfig,
+  setDirectiveMemoryEnabled,
+  listDirectiveMemories,
+  addDirectiveMemory,
+  deleteDirectiveMemory,
+  clearDirectiveMemories,
+} from "../lib/api";
+
+export function useDirectiveMemories(directiveId: string | undefined) {
+  const [memories, setMemories] = useState<DirectiveMemoryEntry[]>([]);
+  const [config, setConfig] = useState<DirectiveMemoryConfig | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const refreshConfig = useCallback(async () => {
+    if (!directiveId) return;
+    try {
+      const c = await getDirectiveMemoryConfig(directiveId);
+      setConfig(c);
+    } catch (e) {
+      // Config may not exist yet — treat as disabled
+      setConfig({ directiveId, enabled: false, updatedAt: new Date().toISOString() });
+    }
+  }, [directiveId]);
+
+  const refreshMemories = useCallback(async () => {
+    if (!directiveId) return;
+    try {
+      setLoading(true);
+      setError(null);
+      const entries = await listDirectiveMemories(directiveId);
+      setMemories(entries);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to load memories");
+    } finally {
+      setLoading(false);
+    }
+  }, [directiveId]);
+
+  const refresh = useCallback(async () => {
+    await Promise.all([refreshConfig(), refreshMemories()]);
+  }, [refreshConfig, refreshMemories]);
+
+  useEffect(() => {
+    refresh();
+  }, [refresh]);
+
+  const toggleEnabled = useCallback(async (enabled: boolean) => {
+    if (!directiveId) return;
+    try {
+      setError(null);
+      const c = await setDirectiveMemoryEnabled(directiveId, enabled);
+      setConfig(c);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to toggle memory");
+    }
+  }, [directiveId]);
+
+  const add = useCallback(async (req: CreateDirectiveMemoryRequest) => {
+    if (!directiveId) return;
+    try {
+      setError(null);
+      await addDirectiveMemory(directiveId, req);
+      await refreshMemories();
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to add memory");
+    }
+  }, [directiveId, refreshMemories]);
+
+  const remove = useCallback(async (memoryId: string) => {
+    if (!directiveId) return;
+    try {
+      setError(null);
+      await deleteDirectiveMemory(directiveId, memoryId);
+      await refreshMemories();
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to delete memory");
+    }
+  }, [directiveId, refreshMemories]);
+
+  const clearAll = useCallback(async () => {
+    if (!directiveId) return;
+    try {
+      setError(null);
+      await clearDirectiveMemories(directiveId);
+      setMemories([]);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : "Failed to clear memories");
+    }
+  }, [directiveId]);
+
+  /** Group entries by category */
+  const grouped = memories.reduce<Record<MemoryCategory, DirectiveMemoryEntry[]>>(
+    (acc, entry) => {
+      acc[entry.category].push(entry);
+      return acc;
+    },
+    { decision: [], context: [], preference: [], learning: [], other: [] },
+  );
+
+  return {
+    memories,
+    grouped,
+    config,
+    loading,
+    error,
+    refresh,
+    toggleEnabled,
+    add,
+    remove,
+    clearAll,
+  };
+}