Clicks that reach the tool: a local list server and skip reasons

tool doesn't start the server yet.

• The daily list can now be opened through a tiny local server that only the same computer can reach. Every "I applied", "Save", "Skip" and "Open listing" click is saved straight into Job Scout's store, instead of waiting for a file the person has to export by hand.
• After Skip, a row of one-click reasons appears (pay, not flexible, wrong role, company, other). They're optional; a skip without one still counts.
• This is the first step of learning from feedback: the clicks are the signal. Other websites open in the same browser can't write to it, and opened as a plain file the page still works as before.