chore: Swap flue kimi-k2.7 agents to deepseek-v4-flash-0731 (#33207)

Author: mvvmm

.flue/AGENTS.md

@@ -77,7 +77,7 @@ Code review and style-guide review fan out **one agent instance per changed file
 - **R2** (`DOCS_FLUE_BUCKET`) holds cross-run review state under `diffs/pr-<n>/`: `review-<headSha>.json` (`{ code: […], style: […], conventions: […] }`; a legacy bare array means style-only), `auto-review-count.json`, `ignore-review-limit.json`, `auto-review-disabled.json`. There is **no rendezvous namespace** in 2.0 — Workflow step durability replaced the R2 finalize lock, and the diff is staged in agent memory / delivered via tools rather than R2.
 - The bot keeps **one** comment per PR, located via the `BOT_COMMENT_MARKER` HTML comment. It embeds `reviewed-head-sha`, `reviewed-at`, and `status` markers used to detect prior state and to partition the human comments posted after it (`lib/code-review-state.ts`).
 - `lib/code-review-render.ts` renders the single comment under a `## Review` heading: a status line, a collapsed "Fix in your agent" prompt block (only when there is an active finding), then `### Code Review`, `### Conventions`, `### Style Guide Review`, an "Acknowledged by author" block, and a Commands block. Findings are tables only; there are no inline review comments. It also renders the `/rebase` status line (`renderRebaseStatusUpdate`).
-- **Models**: specialist and reconciliation model calls use `cloudflare/@cf/moonshotai/kimi-k2.7-code`, except the conventions reviewer which uses `cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731` (a lighter model sufficient for PR-metadata checks). The validation step uses `cloudflare/@cf/zai-org/glm-5.2`.
+- **Models**: all model calls use `cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731`. The validation step uses `cloudflare/@cf/zai-org/glm-5.2`.
 - **Review mode** (`DOCS_FLUE_REVIEW_MODE`): `log` (default) renders and logs the comment without mutating GitHub; `comment` posts/updates the bot comment.
 
 ### Slash commands (codeowner-only, commented on a PR)

.flue/agents/code-review-file.ts

@@ -45,7 +45,7 @@ import type {
 	CodeReviewPullRequest,
 } from "../lib/code-review-files";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured result is written to. */
 export const CODE_REVIEW_FILE_DATA = "code_review_file";

.flue/agents/dependabot-reviewer.ts

@@ -46,7 +46,7 @@ import {
 import { makeDependabotReviewTools } from "../lib/github-repo-tools";
 import { getGitHubToken } from "../lib/token-provider";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured result is written to. */
 export const DEPENDABOT_REVIEW_DATA = "dependabot_review";

.flue/agents/rebase-conflict-resolver.ts

@@ -47,7 +47,7 @@ import {
 import { makeRebaseConflictTools } from "../lib/github-repo-tools";
 import { getGitHubToken } from "../lib/token-provider";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured result is written to. */
 export const CONFLICT_RESOLUTION_DATA = "conflict_resolution";

.flue/agents/reconcile-reviewer.ts

@@ -44,7 +44,7 @@ import {
 } from "../lib/code-review-render";
 import type { DiffMode } from "../lib/code-review-state";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured result is written to. */
 export const RECONCILE_DATA = "reconcile_result";

.flue/agents/spam-filter.ts

@@ -32,7 +32,7 @@ import spamSkill from "../.agents/skills/spam-and-off-topic-filter/SKILL.md";
 import { useBotRole } from "../lib/bot-role";
 import { SpamVerdictSchema } from "../lib/spam-filter";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured verdict is written to. */
 export const SPAM_VERDICT_DATA = "spam_verdict";

.flue/agents/style-guide-file.ts

@@ -41,7 +41,7 @@ import { getGitHubToken } from "../lib/token-provider";
 import type { AddedLine } from "../lib/code-review-files";
 import type { StyleGuidePullRequest } from "../lib/style-guide-files";
 
-const MODEL = "cloudflare/@cf/moonshotai/kimi-k2.7-code";
+const MODEL = "cloudflare/@cf/deepseek-ai/deepseek-v4-flash-0731";
 
 /** Name of the data part the structured result is written to. */
 export const STYLE_GUIDE_FILE_DATA = "style_guide_file";