feat(episodes): add migrations, model and entity for episodes table

mentioned in commit 8e19abd4

mentioned in commit 011a3319

mentioned in commit f3d005b4

mentioned in commit 37efd31c

mentioned in commit 24bf214c

mentioned in commit f877172d

mentioned in commit d25aaf57

mentioned in commit 551f3eb6

mentioned in commit be8ec094

mentioned in commit e6f1f6fc

mentioned in commit eebab2a1

mentioned in commit a734b111

mentioned in commit a5d17024

mentioned in commit 5ef30ba3

mentioned in commit acf5da9b

mentioned in commit 1c70baae

mentioned in commit 58c06d60

mentioned in commit fe3d6b9c

mentioned in commit 2d856e58

mentioned in commit 3e37283d

mentioned in commit 208f1728

mentioned in commit e736fb8f

mentioned in commit af3e6663

mentioned in commit 14733105

mentioned in commit d807ab97

mentioned in commit f9572e41