Well, funny you should mention that...
What got me started on this time-suck of a quest is looking into this folder:
~/Library/Application Support/Adobe/Adobe Photoshop CC/Presets/Actions
and discovering there were no actions to be found there! So, in my WTF moment, I went, where are my actions? Why is the Actions folder in my home library empty? That's not cool. (More importantly, will the little darlings survive the transition to CC 2014?) I could see them in the Actions palette, so, whew, they're still in tact, but that's what got me asking, Where are they? (Note that I use the tilde for "/User/[user name]" as a shortcut.)
The other thing that threw me was this:
The default actions with their .atn extension are living out in the open for all to see in
/Applications/Adobe Photoshop CC/Presets/Actions
So, not only did it seem like actions were still alive and well living as separate, .atn files, but that my own actions were intentionally being hidden for some reason.
So, R_Kelly, I'll be curious, once I do the big install of CC 2014, if actions end up where you said to look because that would actually be a big change.
It does seem like they are living in
~/Library/Preferences/Adobe Photoshop CC Settings/Actions palette.psp
because I made up some actions, synced up to the ol' cloud in the sky, and they came down to my other computer, so apparently that's how it works.
When you save actions, you save them to whatever folder you want, just the default is
/Users/[user name]Library/Application Support/Adobe/Adobe Photoshop CC 2014/Presets/Actions
If you never save any of your actions out of the actions panel, then they''ll probably just be in the Actions.psp file
It's always a good idea to save out any custom actions you make (Save Actions from the actions panel fly-out menu), so you know where they
are for future use and not rely on them staying in the Actions.psp file or creative cloud sync service.
It seems if one syncs the actions using the creative cloud, it only transfers over the Actions.psp.
The actions you synced over should be then listed in the actions panel and then you have to save them out manually
if you want them to appear on the actions panel fly-out menu.
For me, i'd rather save all my custom stuff manually to some place safe rather than relying on any automatic syncing
or migration of presets, etc.