Fix conversation model assignee ID types to match API responses

[VarshSuresh]

Why?

Towards Dev Rel PQ

The conversations API (GET /:id, GET /all, POST /search) returns admin_assignee_id and team_assignee_id as integers, returning 0 when unassigned. However, the docs had team_assignee_id typed as string, both fields marked as nullable, descriptions referencing null, and search tables listing both as String. The tickets API correctly returns these as strings and its docs are accurate, this PR consolidates the conversation model to match the actual API behavior.

How?

• Updated team_assignee_id to integer type
• Removed nullable: true
• Changed descriptions from "return null" to "return 0"
• fixed search table types from String to Integer, and
• added alternating integer/zero example values in response examples — all scoped to the conversation model across every version (@2.7 through @Preview). Ticket model is intentionally unchanged.

Implementation Plan

Plan: Fix admin_assignee_id and team_assignee_id types in conversation model

Context

The real Intercom API returns admin_assignee_id and team_assignee_id as integers in conversation responses. The docs have these typed incorrectly as strings in several places. Scope: Conversations model only — ticket model stays unchanged.

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@2.7–@Preview (OpenAPI YAML files)

Schema type fix: team_assignee_id in conversation schemas

Each version has TWO conversation schemas (conversation_list_item and conversation). Change in both:

• type: string → type: integer
• example: '5017691' → example: 5017691

Search conversation doc tables (inline in YAML)

Change both admin_assignee_id and team_assignee_id from String to Integer in the conversation search table only (NOT the ticket search table).

Response examples updated with alternating integer/zero values

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What NOT to change

• Ticket schemas — admin_assignee_id and team_assignee_id are correctly string in tickets
• Ticket search tables — leave as String
• Ticket response examples — quoted string values like '0' are correct

Mirrors intercom/developer-docs#842.

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