fix(plugin): remove process.cwd() fallbacks from memory promotion paths

process.cwd() in historian/recomp promotion could resolve to a
different project's directory, causing cross-project memory
contamination. Now skips promotion entirely if deps.directory is
undefined rather than falling back to an unreliable cwd.

Also cleaned 43 contaminated memories from paq project that were
incorrectly promoted from this session.

Author: ualtinok

packages/plugin/src/hooks/magic-context/compartment-runner-incremental.ts

@@ -143,12 +143,14 @@ export async function runCompartmentAgent(deps: CompartmentRunnerDeps): Promise<
             appendCompartments(db, sessionId, newCompartments);
             replaceSessionFacts(db, sessionId, validatedPass.facts ?? []);
         })();
-        promoteSessionFactsToMemory(
-            db,
-            sessionId,
-            resolveProjectIdentity(deps.directory ?? process.cwd()),
-            validatedPass.facts ?? [],
-        );
+        if (deps.directory) {
+            promoteSessionFactsToMemory(
+                db,
+                sessionId,
+                resolveProjectIdentity(deps.directory),
+                validatedPass.facts ?? [],
+            );
+        }
 
         const lastCompartmentEnd = lastNewEnd;
         queueDropsForCompartmentalizedMessages(db, sessionId, lastCompartmentEnd);

packages/plugin/src/hooks/magic-context/compartment-runner-recomp.ts

@@ -62,8 +62,10 @@ export async function executeContextRecompInternal(deps: CompartmentRunnerDeps):
         const sessionDirectory = parentSession?.directory ?? directory;
 
         // Render project memories once as read-only reference for fact dedup across all passes
-        const projectPath = resolveProjectIdentity(directory ?? process.cwd());
-        const memories = getMemoriesByProject(db, projectPath, ["active", "permanent"]);
+        const projectPath = directory ? resolveProjectIdentity(directory) : undefined;
+        const memories = projectPath
+            ? getMemoriesByProject(db, projectPath, ["active", "permanent"])
+            : [];
         const memoryBlock = renderMemoryBlock(memories) ?? undefined;
 
         // ── Resume from staging if a previous run was interrupted ────────────
@@ -100,12 +102,14 @@ export async function executeContextRecompInternal(deps: CompartmentRunnerDeps):
             const promoted = promoteRecompStaging(db, sessionId);
             if (!promoted) return null;
 
-            promoteSessionFactsToMemory(
-                db,
-                sessionId,
-                resolveProjectIdentity(deps.directory ?? process.cwd()),
-                promoted.facts,
-            );
+            if (deps.directory) {
+                promoteSessionFactsToMemory(
+                    db,
+                    sessionId,
+                    resolveProjectIdentity(deps.directory),
+                    promoted.facts,
+                );
+            }
 
             const lastCompartmentEnd =
                 promoted.compartments[promoted.compartments.length - 1]?.endMessage ?? 0;
@@ -268,12 +272,14 @@ export async function executeContextRecompInternal(deps: CompartmentRunnerDeps):
         const finalCompartments = promoted?.compartments ?? candidateCompartments;
         const finalFacts = promoted?.facts ?? candidateFacts;
 
-        promoteSessionFactsToMemory(
-            db,
-            sessionId,
-            resolveProjectIdentity(deps.directory ?? process.cwd()),
-            finalFacts,
-        );
+        if (deps.directory) {
+            promoteSessionFactsToMemory(
+                db,
+                sessionId,
+                resolveProjectIdentity(deps.directory),
+                finalFacts,
+            );
+        }
 
         const lastCompartmentEnd = finalCompartments[finalCompartments.length - 1]?.endMessage ?? 0;
         if (lastCompartmentEnd > 0) {