Add Octane support

[ganyicz]

The scenario

Using Blaze with Laravel Octane. State from one request leaks into subsequent requests, causing errors.

The problem

Blaze's core singletons (BlazeRuntime, BlazeManager, Debugger, Memo, Unblaze) accumulate per-request state that is never reset between Octane requests.

The solution

• Added flushState() methods to all stateful classes and registered RequestReceived listener that resets them between requests:
• Added setApplication() on BlazeRuntime so Octane can swap in its sandbox app instance.
• Moved debug timer injection from the middleware into the view composer.

Fixes #85
Fixes #109

[github-actions]

Benchmark Results

Attempt	Blade	Blaze	Improvement
#1 *	353.12ms	19.29ms	94.5%
#2 *	358.79ms	20.06ms	94.4%
#3	359.17ms	19.81ms	94.5%
#4	349.04ms	19.72ms	94.4%
#5	349.66ms	19.79ms	94.3%
#6	352.43ms	19.65ms	94.4%
#7	348.99ms	19.69ms	94.4%
#8	348.58ms	19.70ms	94.3%
#9	352.15ms	19.63ms	94.4%
#10	356.77ms	19.54ms	94.5%
Snapshot	379.47ms	19.66ms	94.8%
Result	350.91ms (-7.5%)	19.70ms (~)	94.4% (-0.4%)

_{Median of 10 attempts (* = outlier, excluded from result), 5000 iterations x 10 rounds, 46.93s total}