have a local and public timeline *per user*

internal/processing/timeline/public.go

@@ -57,8 +57,8 @@ func (p *Processor) publicTimelineGet(
 		// account.
 		requester,
 
-		// Global public timeline cache.
-		&p.state.Caches.Timelines.Public,
+		// Keyed-by-account-ID, public timeline cache.
+		p.state.Caches.Timelines.Public.MustGet(requester.ID),
 
 		// Current
 		// page.
@@ -110,8 +110,8 @@ func (p *Processor) localTimelineGet(
 		// account.
 		requester,
 
-		// Global local timeline cache.
-		&p.state.Caches.Timelines.Local,
+		// Keyed-by-account-ID, local timeline cache.
+		p.state.Caches.Timelines.Local.MustGet(requester.ID),
 
 		// Current
 		// page.

internal/processing/timeline/public_test.go

@@ -155,7 +155,7 @@ func (suite *PublicTestSuite) TestPublicTimelineGetHideFiltered() {
 	}
 
 	// Clear the timeline to drop all cached statuses.
-	suite.state.Caches.Timelines.Public.Clear()
+	suite.state.Caches.Timelines.Public.ClearAll()
 
 	// Create a filter to hide one status on the timeline.
 	if err := suite.db.PutFilter(ctx, filter); err != nil {

internal/processing/workers/surfacetimeline.go

@@ -21,7 +21,7 @@ import (
 	"context"
 	"errors"
 
-	timeline2 "github.com/superseriousbusiness/gotosocial/internal/cache/timeline"
+	"github.com/superseriousbusiness/gotosocial/internal/cache/timeline"
 	statusfilter "github.com/superseriousbusiness/gotosocial/internal/filter/status"
 	"github.com/superseriousbusiness/gotosocial/internal/filter/usermute"
 	"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
@@ -356,16 +356,11 @@ func (s *Surface) listEligible(
 	}
 }
 
-// timelineStatus uses the provided ingest function to put the given
-// status in a timeline with the given ID, if it's timelineable.
-//
-// If the status was inserted into the timeline, true will be returned
-// + it will also be streamed to the user using the given streamType.
-
-// timelineStatus ...
+// timelineStatus will insert the given status into the given timeline, if it's
+// timelineable. if the status was inserted into the timeline, true will be returned.
 func (s *Surface) timelineStatus(
 	ctx context.Context,
-	timeline *timeline2.StatusTimeline,
+	timeline *timeline.StatusTimeline,
 	account *gtsmodel.Account,
 	status *gtsmodel.Status,
 	streamType string,