#22900: fix(discord): set IS_COMPONENTS_V2 flag for v2 components in sendDiscordText/Media

## Summary - Merges the `IS_COMPONENTS_V2` message flag (`1 << 15`) into `buildDiscordMessagePayload()` when v2 components (Containers) are detected - Without this flag, Discord silently drops v2 components from sent messages - The fix is centralized in `buildDiscordMessagePayload()` which already detects v2 components via `hasV2Components()`, ensuring all send paths benefit Previously, only the dedicated components send path (`send.components.ts`) set this flag via `buildDiscordComponentMessageFlags()`. The `sendDiscordText` and `sendDiscordMedia` paths never set it. Fixes #22565 ## Local Validation - [x] Verified `MessageFlags.IsComponentsV2` import from `discord-api-types/v10` - [x] Flag is only set when v2 components are present (no change for regular messages) - [x] `SUPPRESS_NOTIFICATIONS_FLAG` is correctly merged with the v2 flag via bitwise OR ## Scope XS — 5-line change in one file (import + flag merge logic) ## AI Assistance Used Claude Code for issue investigation and fix implementation. ## Author @miloudbelarebia 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> <!-- greptile_comment --> <h3>Greptile Summary</h3> This PR fixes a bug where Discord v2 components (Containers) were silently dropped from messages sent via `sendDiscordText` and `sendDiscordMedia`. The fix centralizes the `MessageFlags.IsComponentsV2` flag logic in `buildDiscordMessagePayload()`, which already detects v2 components via `hasV2Components()`. The flag is properly merged with any existing flags (like `SUPPRESS_NOTIFICATIONS_FLAG`) using bitwise OR, ensuring all send paths now correctly set the flag when needed. <h3>Confidence Score: 5/5</h3> - This PR is safe to merge with minimal risk - The change is minimal (5 lines), well-scoped, and follows the existing pattern from `send.components.ts` (line 84-87). The flag merge logic correctly uses bitwise OR with proper null coalescing, and the implementation is consistent with Discord's API requirements for v2 components. - No files require special attention _{Last reviewed commit: 0668aae} <!-- greptile_other_comments_section --> <!-- /greptile_comment -->