Slice 4 control-plane repairs, lint/catalog cleanup, Flue adapter fixes

Convex control plane (Slices 1-4 prerequisites for Slice 5):
- Versioned Definition/Design persistence: revisions preserve history
  instead of deleting prior slices/approvals
- Fenced conversation turn queue: attempt-numbered leases prevent stale
  worker overwrites; expired turns reconciled by cron
- Fenced Run/Attempt claiming: only queued attempts from running Runs can
  be claimed; lease expiry checks on every finish/checkpoint
- Multi-slice progression: successful slice marks next slice ready instead
  of completing the whole Work; completed Runs blocked from retry
- Typed AttemptClassification in schema and resolver decisions table
- Durable resolver decisions for normal outcomes, cancellation, and
  lease-expiry recovery
- Persistent artifacts and delivery metadata with provenance, source
  revision, verification status, and controlled delivery transitions
- High-impact open questions block definition approval
- Question submission gated to defining/awaiting-approval states only
- Delivery status updates validate JSON metadata before persisting
- Planner failures recorded as durable blocked events
- Approval identity uses canonical tokenIdentifier

Primitives:
- decodeDefinition separates decode from validate
- Design validation enforces 1-4 slices with unique IDs and valid deps
- Artifact and delivery draft schemas with verified-revision binding
- Delivery status transition table

Package management:
- Consolidated shared deps into single catalog (hono, valibot, streamdown,
  @types/react, @types/node, @tailwindcss/*, react-native)
- Removed cross-version Hono boundary: flue() exported as Fetchable
- Deleted bun.lock and regenerated from clean catalog resolution

Lint/format:
- Removed .eslintignore; oxc uses native ignorePatterns in oxlint.config.ts
- Deleted redundant packages/backend/.oxlintrc.json
- Added repos/** and scripts/** to ignore patterns
- Convex-specific rule overrides for ES2022 target constraints
- Fixed all oxc errors in fluePersistence.ts and agents/src/db.ts
- Fixed all formatting across changed files

packages/primitives/src/work-resolution.test.ts

@@ -3,7 +3,7 @@ import { describe, expect, test } from "vitest";
 
 import { FakeHarnessLive } from "./harness-runtime";
 import { defaultCodingKitV0, resolveOutcome, shouldRetry } from "./resolver";
-import { validateDefinition } from "./work-definition";
+import { decodeDefinition, validateDefinition } from "./work-definition";
 import { validateDesignPacket } from "./work-design";
 import { canTransitionWork } from "./work-lifecycle";
 
@@ -37,11 +37,25 @@ const probeOutcome = (
 
 describe("work resolution contracts", () => {
   test("high-impact open questions block definition approval", async () => {
+    await expect(
+      Effect.runPromise(decodeDefinition(definition))
+    ).resolves.toEqual(definition);
     await expect(
       Effect.runPromise(validateDefinition(definition))
     ).rejects.toThrow(/High-impact/u);
   });
 
+  test("question identities are unique within a Definition version", async () => {
+    await expect(
+      Effect.runPromise(
+        decodeDefinition({
+          ...definition,
+          questions: [definition.questions[0], definition.questions[0]],
+        })
+      )
+    ).rejects.toThrow(/Question ID must be unique/u);
+  });
+
   test("observable slices and terminal fake outcomes are enforced", async () => {
     const approved = await Effect.runPromise(
       validateDefinition({ ...definition, questions: [] })