feat(ltm): PoC paste pages

include/lander.h

@@ -4,16 +4,21 @@
 #include "lnm/common.h"
 #include "lnm/http/loop.h"
 #include "lsm/store.h"
+#include "ltm/template.h"
 
 extern const char lander_key_charset[];
 
 typedef struct lander_gctx {
   const char *data_dir;
   lsm_store *store;
+  struct {
+    ltm_template *paste;
+  } templates;
 } lander_gctx;
 
 typedef struct lander_ctx {
   lsm_entry_handle *entry;
+  ltm_instance *instance;
 } lander_ctx;
 
 typedef enum lander_attr_type : uint8_t {