fix: postgres needs the user to exist before you can add a participant

[odilitime]

Risks

Low

Background

What does this PR do?

waits for users to be added before proceeding to adding participants

also moves the db check up before doing any db things

What kind of change is this?

Bug fixes (non-breaking change which fixes an issue)

Why are we doing this? Any context or related work?

 ["◎ Room c6dc9108-8990-0d80-a635-98d3a928f4e4 created successfully."] 

Error adding participant error: insert or update on table "participants" violates foreign key constraint "participants_userId_fkey"
    at /root/eliza-odi/node_modules/pg-pool/index.js:45:11
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async file:///root/eliza-odi/packages/adapter-postgres/dist/index.js:822:17
    at async PostgresDatabaseAdapter.withRetry (file:///root/eliza-odi/packages/adapter-postgres/dist/index.js:67:24)
    at async CircuitBreaker.execute (file:///root/eliza-odi/packages/core/dist/index.js:93:28)
    at async PostgresDatabaseAdapter.withCircuitBreaker (file:///root/eliza-odi/packages/core/dist/index.js:383:20)
    at async AgentRuntime.ensureParticipantExists (file:///root/eliza-odi/packages/core/dist/index.js:3661:13) {
  length: 305,
  severity: 'ERROR',
  code: '23503',
  detail: 'Key (userId)=(c6dc9108-8990-0d80-a635-98d3a928f4e4) is not present in table "accounts".',
  hint: undefined,
  position: undefined,
  internalPosition: undefined,
  internalQuery: undefined,
  where: undefined,
  schema: 'public',
  table: 'participants',
  column: undefined,
  dataType: undefined,
  constraint: 'participants_userId_fkey',
  file: 'ri_triggers.c',
  line: '2608',
  routine: 'ri_ReportViolation'
}
 ["✓ User WokeMindVirus created successfully."]

Documentation changes needed?

My changes do not require a change to the project documentation.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/core/src/runtime.ts	0.00%	6 Missing ⚠️

Files with missing lines	Coverage Δ
packages/core/src/runtime.ts	0.00% <0.00%> (ø)

[monilpat]

LGTM!