feat: make infino runnable in the clickbench playground

[naman-modi]

Makes the infino entry run in the Playground too. It already exists in clickbench via #1129.

Some Pointers:

• Query now returns the result rows as a text table, not just a count. It is a bounded preview (first 1000 rows, capped at 256 KB) so a large result cannot blow up the VM. Timing is unchanged, it still wraps query_sql only and the table is formatted after the clock stops.
• The shared variables moved into a shared config.sh that load, start, and benchmark.sh all source, so the raw scripts get the same configs as benchmark.
• Bumped to the published infino crate 0.5.3 and pinned strong read consistency.
• Fits the 16 GB microVM with no swap: the full 100M load peaks around 11 GB.

[naman-modi]

Hey @alexey-milovidov, can you please take a look at this PR? Thanks!