feat(server): register the routes, the slot, the leg and the boot hooks

The entry point becomes real: five mount prefixes, the admin.users.detail
extension slot, the shard push catalog, the town-crier announce leg and both
lifecycle hooks. module.json declares all of it and the loader checks the
declaration against what register() actually registers, in both directions.

The URLs are byte-identical to the ones core served before the extraction. That
is the whole point of moving the code and not the paths: the shipped Android app
calls POST /api/v1/admin/shard/kick and the Discord bot reads
/api/v1/public/shard/*, and neither knows a module answers now.

Require order is load-bearing and the requires are inside register() because of
it. Every ported file reaches core through ./core, whose members resolve ctx
when called -- but a router does `const express = core.express` at ITS file
scope, which runs the moment it is required. Hoisting these to the top of the
file breaks the module with an error about ctx being missing, from a file that
never mentions it.

boot.js takes the eight UO call sites out of core's server.js. One behavioural
change, deliberate: uoLinkSocket.start() and the sidecar health probe used to
run AFTER the listener bound and now run before it, because onBoot does. start()
returns as soon as the reconnecting client is armed, but the probe is a real
HTTP call, so it is fired and NOT awaited -- an unreachable sidecar must not
hold the site closed. Reporting that the bridge is down is diagnostics; being up
is not a precondition for serving a page.

router/rateLimits.js builds the market limiter through ctx.middleware.rateLimit,
core's factory. The policy is the module's -- only the module knows what its
endpoints cost -- and the plumbing is core's, so there is one express-rate-limit
in the process and one place a breach is logged.

Co-Authored-By: Claude <noreply@anthropic.com>

server/router/public/atlas.router.js

@@ -0,0 +1,129 @@
+// Public · Atlas — the spawn atlas / bestiary. Static shard CONTENT derived from
+// the shard's own ServUO tree, not live shard state.
+//
+// Mounted at /api/v1/public/atlas by public/index.js. Two deliberate differences
+// from the /public/shard routes next door (docs/link/v3.md §6):
+//
+//   • **Not under /shard.** Nothing here round-trips the sidecar, and the pages
+//     stay fully populated while the shard is down. Mounting it under /shard
+//     would imply a dependency it does not have.
+//   • **siteMode-gated, like /posts and /wiki.** The shard routes are exempt
+//     because shard status is wanted *during* maintenance; a bestiary is site
+//     content and follows site content's rules.
+//
+// Every route also carries `requireFeature('atlas')` — 404 when an admin has
+// disabled the feature, 403 when the caller sits below its configured audience.
+// The default audience is `anonymous`, so these gates are inert until an admin
+// changes something.
+
+const core = require('../../core')
+
+const express = core.express
+const { param, query } = core.validator
+
+const atlas = require('./atlas.controller')
+const { siteMode, validate } = core.middleware
+const { requireFeature } = require('../../utils/shardVisibility')
+
+const atlasRouter = express.Router()
+
+// Facet names come from the shard's own files and are never validated against a
+// list — nothing in the codebase names a facet (§6.1 R2). Only the length is
+// bounded, and the query matches exactly, so an unknown name returns an empty
+// result rather than an error.
+const facetParam = query('facet').optional({ values: 'falsy' }).isString().isLength({ max: 40 })
+
+atlasRouter.get(
+  '/creatures',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'Search the bestiary (paginated)'
+  // #swagger.description = 'Every creature the shard spawns, most numerous first. `total` is how many can be alive at once across all spawners; `points` is how many spawners mention it; `facets` maps facet name to that creature\'s share on it. Static content parsed from the shard\'s ServUO tree — unaffected by the shard being offline.'
+  // #swagger.parameters['q'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Substring match on the creature name (max 60 chars).' }
+  // #swagger.parameters['facet'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Limit to creatures spawning on this facet. Facet names come from the shard\'s own files; an unknown one returns an empty page.' }
+  // #swagger.parameters['limit'] = { in: 'query', required: false, schema: { type: 'integer' }, description: 'Page size, 1..100 (default 50).' }
+  // #swagger.parameters['offset'] = { in: 'query', required: false, schema: { type: 'integer' }, description: 'Rows to skip (default 0).' }
+  /* #swagger.responses[200] = { description: 'A page of creatures plus the unpaginated total', content: { "application/json": { schema: { $ref: "#/components/schemas/AtlasCreaturePage" } } } } */
+  /* #swagger.responses[403] = { description: 'The atlas feature is gated above this caller', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  /* #swagger.responses[404] = { description: 'The atlas feature is disabled', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  query('q').optional({ values: 'falsy' }).isString().isLength({ max: 60 }),
+  facetParam,
+  query('limit').optional().isInt({ min: 1, max: 100 }),
+  query('offset').optional().isInt({ min: 0, max: 100000 }),
+  validate,
+  siteMode,
+  atlas.getCreatures,
+)
+atlasRouter.get(
+  '/creatures/:slug',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'One creature: where it spawns, and what spawns with it'
+  // #swagger.description = 'The answer the atlas exists to give. `places` is the aggregate — "lizardman → Shrines, Isamu-Jima, Yew" — resolved by point-in-rect against the shard\'s own region rectangles, falling back to the nearest landmark, else "Wilderness". `spawners` lists the individual spawn points (bounded; `spawnersTruncated` says when the list was cut), and `alsoHere` is what shares those spawners.'
+  // #swagger.parameters['slug'] = { in: 'path', required: true, schema: { type: 'string' }, description: 'Creature slug, e.g. lizardman.' }
+  // #swagger.parameters['facet'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Restrict places and spawners to one facet.' }
+  // #swagger.parameters['points'] = { in: 'query', required: false, schema: { type: 'integer' }, description: 'Max spawners to return, 1..1000 (default 200).' }
+  /* #swagger.responses[200] = { description: 'The creature', content: { "application/json": { schema: { $ref: "#/components/schemas/AtlasCreature" } } } } */
+  /* #swagger.responses[404] = { description: 'No such creature in this atlas (or the feature is disabled)', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('slug').isString().isLength({ min: 1, max: 120 }),
+  facetParam,
+  query('points').optional().isInt({ min: 1, max: 1000 }),
+  validate,
+  siteMode,
+  atlas.getCreature,
+)
+atlasRouter.get(
+  '/regions',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'Named regions and their rectangles'
+  // #swagger.description = 'Flattened out of the shard\'s nested Regions.xml. `priority` and the rectangles are what placed each spawn point, kept so the placement can be re-derived rather than taken on trust.'
+  // #swagger.parameters['facet'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Limit to one facet.' }
+  // #swagger.parameters['q'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Substring match on the region name.' }
+  /* #swagger.responses[200] = { description: 'Regions, by facet then name', content: { "application/json": { schema: { type: "array", items: { $ref: "#/components/schemas/AtlasRegion" } } } } } */
+  facetParam,
+  query('q').optional({ values: 'falsy' }).isString().isLength({ max: 60 }),
+  validate,
+  siteMode,
+  atlas.getRegions,
+)
+atlasRouter.get(
+  '/landmarks',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'Points of interest (dungeon levels, town markers)'
+  // #swagger.description = 'From the shard\'s Data/Locations files. `group` is the innermost enclosing parent ("Covetous"), which is the label worth showing over the individual marker ("Level 1").'
+  // #swagger.parameters['facet'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Limit to one facet.' }
+  // #swagger.parameters['q'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Substring match on the landmark name or its group.' }
+  /* #swagger.responses[200] = { description: 'Landmarks, by facet then group', content: { "application/json": { schema: { type: "array", items: { $ref: "#/components/schemas/AtlasLandmark" } } } } } */
+  facetParam,
+  query('q').optional({ values: 'falsy' }).isString().isLength({ max: 60 }),
+  validate,
+  siteMode,
+  atlas.getLandmarks,
+)
+atlasRouter.get(
+  '/champions',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'Configured champion altars (the roster, not the live board)'
+  // #swagger.description = 'Where the altars are and what each one summons — "there is an Unholy Terror altar in Deceit". `randomType` marks altars whose champion is drawn at activation. Do not conflate this with GET /public/shard/champs, which is the live sidecar-fed board ("it is on level 3 right now").'
+  // #swagger.parameters['facet'] = { in: 'query', required: false, schema: { type: 'string' }, description: 'Limit to one facet.' }
+  /* #swagger.responses[200] = { description: 'Altars, by facet then name', content: { "application/json": { schema: { type: "array", items: { $ref: "#/components/schemas/AtlasChampion" } } } } } */
+  facetParam,
+  validate,
+  siteMode,
+  atlas.getChampions,
+)
+atlasRouter.get(
+  '/meta',
+  requireFeature('atlas'),
+  // #swagger.tags = ['Public · Atlas']
+  // #swagger.summary = 'What atlas is loaded: facets, counts, when it was imported'
+  // #swagger.description = 'Drives the facet filter and the "parsed from the shard\'s own files on <date>" line. Reports the game world only — the ServUO path, the per-file hashes and any pending refresh are operator detail and live on the admin status route.'
+  /* #swagger.responses[200] = { description: 'Atlas metadata', content: { "application/json": { schema: { $ref: "#/components/schemas/AtlasMeta" } } } } */
+  siteMode,
+  atlas.getMeta,
+)
+
+module.exports = atlasRouter