feat(research): add mana-research service — Phase 1 + 2

New Bun/Hono service on port 3068 that bundles many web-research providers
behind a unified interface for side-by-side comparison. All eval runs
persist in research.* (mana_platform) so quality can be reviewed later.

Providers (Phase 1+2):
  search:  searxng, duckduckgo, brave, tavily, exa, serper
  extract: readability (via mana-search), jina-reader, firecrawl

Endpoints:
  POST /v1/search, /v1/search/compare       — single + fan-out
  POST /v1/extract, /v1/extract/compare     — single + fan-out
  GET  /v1/runs, /v1/runs/:id               — history
  POST /v1/runs/:run/results/:id/rate       — manual eval
  GET  /v1/providers, /v1/providers/health  — catalog + readiness

Auto-routing: when `provider` is omitted, queries are classified via regex
(fast path, 0ms) with optional mana-llm fallback, then routed to the first
available provider for that query type (news → tavily, academic → exa,
semantic → exa, etc.).

Credits: server-key calls go through mana-credits reserve → commit/refund
so failed provider calls don't charge the user. BYO-keys supported via
research.provider_configs (UI arrives in Phase 4).

Cache: Redis with graceful degradation (1h TTL for search, 24h for
extract). Pay-per-use APIs only — no subscription-gated providers.

Docs: docs/plans/mana-research-service.md + docs/reports/web-research-capabilities.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/shared-research/package.json

@@ -0,0 +1,27 @@
+{
+	"name": "@mana/shared-research",
+	"version": "0.1.0",
+	"private": true,
+	"sideEffects": false,
+	"description": "Shared types and provider interfaces for the Mana research service.",
+	"main": "./src/index.ts",
+	"types": "./src/index.ts",
+	"exports": {
+		".": "./src/index.ts",
+		"./types": "./src/types.ts",
+		"./providers": "./src/providers.ts",
+		"./options": "./src/options.ts",
+		"./ids": "./src/ids.ts"
+	},
+	"scripts": {
+		"type-check": "tsc --noEmit",
+		"clean": "rm -rf dist"
+	},
+	"dependencies": {
+		"zod": "^3.24.0"
+	},
+	"devDependencies": {
+		"@types/node": "^24.10.1",
+		"typescript": "^5.9.3"
+	}
+}