docs: consolidate outstanding docs fixes

[clockwork-labs-bot]

Summary

Consolidates the outstanding docs PRs opened by clockwork-labs-bot / Docs Gremlin into one reviewable PR:

• Fix broken getting started docs links #4958
• Document server-issued token reconnect behavior #5085
• docs: sync C++ skill coverage #5089
• docs: clarify Unreal connection ticking #5097
• docs: fix Unreal ticking and C# generate examples #5112
• docs: clarify Unreal client ticking #5114
• docs: update C# connection callback signatures #5117
• docs: sync C++ language coverage #5127
• docs: use deterministic C# schedule time #5138
• docs: clarify client frame ticking guidance #5165
• docs: fix generate usage for Unreal bindings #5175
• docs: update TypeScript framework integration reference #5222

This combines docs updates for:

• getting-started links
• server-issued auth token reconnect behavior in the Unity tutorial
• C++ module/client language coverage
• Unreal client ticking / FrameTick guidance
• C# connection callback signatures and codegen language spelling
• deterministic schedule-table sample time
• client frame ticking troubleshooting
• corrected spacetime generate usage for Unreal bindings
• TypeScript framework integration reference updates for SolidJS and current React query-builder tuple usage

Validation

• rg -n '^(<<<<<<<|=======|>>>>>>>)' docs crates skills
• git diff --check origin/master...HEAD
• pnpm --dir docs typecheck
• pnpm --dir docs build

[clockwork-labs-bot]

Jason, good catch on the generate usage line. I restored --unreal-module-name, kept the module source group first, and left the Unreal output option in the output group so the usage no longer implies Unreal flags are mutually exclusive with module source flags.

[JasonAtClockwork]

LGTM

[JulienLavocat]

Auth changes LGTM

[cloutiertyler]

Code owned files LGTM