raidboss: FRU - p2 + p3 (#538)

~~This has the rest of p2 and initial p3 through Ultimate Relativity.
I'm marking this as draft/WIP for now because, even though it looks fine
in RE, it needs some solid testing in-game (especially on the UR
timings). And there's probably comment typos thanks to my crappy
keyboard, and who knows, probably other mistakes too.~~

(1/11/25 edit: This now has the rest of P2 and P3. I'll PR the P4 stuff
separately.)

I started adding strat options for some stuff as well.  So far:
* Sinbound Holy - the LesBin/current pf strat seems to be to always
rotate away from Shiva unless she spawns on a knockback spot, in which
case everyone races CW and the group approaching her then slides to
rejoin the other before Silence/Stillness. I haven't seen any other
strats getting attention, but defer to others if they have. This is
added as a strat option, but because the alternative is just calling the
relative add spot (which feels, i dunno, kinda unhelpful?), I made this
the default option. If folks object, I will change it back.
* Ultimate Relativity - the LesBin/current pf strat seems to be Y north
with DPS E-SW. Using this strat option lets cactbot actually calculate
your absolute clock spot for this mech. For the `none` option, it will
still call each step, since it's fairly deterministic regardless of
strat. But again, happy to defer to others here if they have better
ideas.

resources/responses.ts

@@ -328,6 +328,7 @@ export const Responses = {
   bigAoe: (sev?: Severity) => staticResponse(defaultInfoText(sev), Outputs.bigAoe),
   bleedAoe: (sev?: Severity) => staticResponse(defaultInfoText(sev), Outputs.bleedAoe),
   spread: (sev?: Severity) => staticResponse(defaultInfoText(sev), Outputs.spread),
+  protean: (sev?: Severity) => staticResponse(defaultInfoText(sev), Outputs.protean),
   // for stack marker situations.
   stackMarker: (sev?: Severity) => staticResponse(defaultAlertText(sev), Outputs.stackMarker),
   // for getting together without stack marker