graphdb: pass context to AddEdgeProof

diff --git a/graph/builder.go b/graph/builder.go
index a47cc18..391195f 100644
--- a/graph/builder.go
+++ b/graph/builder.go
@@ -1312,7 +1312,7 @@ func (b *Builder) ForAllOutgoingChannels(ctx context.Context,
 func (b *Builder) AddProof(chanID lnwire.ShortChannelID,
 	proof *models.ChannelAuthProof) error {
 
-	return b.cfg.Graph.AddEdgeProof(chanID, proof)
+	return b.cfg.Graph.AddEdgeProof(context.TODO(), chanID, proof)
 }
 
 // IsStaleNode returns true if the graph source has a node announcement for the
diff --git a/graph/db/graph.go b/graph/db/graph.go
index c42f543..66ab6d9 100644
--- a/graph/db/graph.go
+++ b/graph/db/graph.go
@@ -692,10 +692,10 @@ func (c *ChannelGraph) HasChannelEdge(ctx context.Context,
 }
 
 // AddEdgeProof sets the proof of an existing edge in the graph database.
-func (c *ChannelGraph) AddEdgeProof(chanID lnwire.ShortChannelID,
-	proof *models.ChannelAuthProof) error {
+func (c *ChannelGraph) AddEdgeProof(ctx context.Context,
+	chanID lnwire.ShortChannelID, proof *models.ChannelAuthProof) error {
 
-	return c.db.AddEdgeProof(chanID, proof)
+	return c.db.AddEdgeProof(ctx, chanID, proof)
 }
 
 // HighestChanID returns the "highest" known channel ID in the channel graph.
diff --git a/graph/db/graph_test.go b/graph/db/graph_test.go
index d9c26a9..d25289b 100644
--- a/graph/db/graph_test.go
+++ b/graph/db/graph_test.go
@@ -1611,7 +1611,7 @@ func testAddEdgeProof(t *testing.T, v lnwire.GossipVersion) {
 
 	// Now add just the proof via AddEdgeProof.
 	scid1 := lnwire.NewShortChanIDFromInt(edge1.ChannelID)
-	require.NoError(t, graph.AddEdgeProof(scid1, proof))
+	require.NoError(t, graph.AddEdgeProof(ctx, scid1, proof))
 
 	// Fetch the edge again and assert that the proof is now set.
 	dbEdge, _, _, err = graph.FetchChannelEdgesByID(
diff --git a/graph/db/interfaces.go b/graph/db/interfaces.go
index 615b2cb..eb3f7e9 100644
--- a/graph/db/interfaces.go
+++ b/graph/db/interfaces.go
@@ -237,7 +237,7 @@ type Store interface { //nolint:interfacebloat
 
 	// AddEdgeProof sets the proof of an existing edge in the graph
 	// database.
-	AddEdgeProof(chanID lnwire.ShortChannelID,
+	AddEdgeProof(ctx context.Context, chanID lnwire.ShortChannelID,
 		proof *models.ChannelAuthProof) error
 
 	// ChannelID attempt to lookup the 8-byte compact channel ID which maps
diff --git a/graph/db/kv_store.go b/graph/db/kv_store.go
index 7a57db6..35842ec 100644
--- a/graph/db/kv_store.go
+++ b/graph/db/kv_store.go
@@ -1440,7 +1440,7 @@ func (c *KVStore) HasChannelEdge(ctx context.Context, v lnwire.GossipVersion,
 }
 
 // AddEdgeProof sets the proof of an existing edge in the graph database.
-func (c *KVStore) AddEdgeProof(chanID lnwire.ShortChannelID,
+func (c *KVStore) AddEdgeProof(_ context.Context, chanID lnwire.ShortChannelID,
 	proof *models.ChannelAuthProof) error {
 
 	// We only support v1 channel proofs in the KVStore.
diff --git a/graph/db/sql_store.go b/graph/db/sql_store.go
index f1aad75..78ef82c 100644
--- a/graph/db/sql_store.go
+++ b/graph/db/sql_store.go
@@ -3198,8 +3198,8 @@ func (s *SQLStore) DisconnectBlockAtHeight(ctx context.Context,
 // AddEdgeProof sets the proof of an existing edge in the graph database.
 //
 // NOTE: part of the Store interface.
-func (s *SQLStore) AddEdgeProof(scid lnwire.ShortChannelID,
-	proof *models.ChannelAuthProof) error {
+func (s *SQLStore) AddEdgeProof(ctx context.Context,
+	scid lnwire.ShortChannelID, proof *models.ChannelAuthProof) error {
 
 	if !isKnownGossipVersion(proof.Version) {
 		return fmt.Errorf("unsupported gossip version: %d",
@@ -3207,7 +3207,6 @@ func (s *SQLStore) AddEdgeProof(scid lnwire.ShortChannelID,
 	}
 
 	var (
-		ctx       = context.TODO()
 		scidBytes = channelIDToBytes(scid.ToUint64())
 	)