chore: harden config, strengthen frontend typing, fix UTF-8 mojibake

Security config (3.1):
- config/session.ts: cookie.secure now follows app.inProduction instead of
  being hardcoded to false
- config/shield.ts: enable CSP with baseline directives compatible with
  Vite dev server and Inertia (self + @viteDevUrl/@viteHmrUrl)

Frontend typing (3.2):
- Replace 'any' props with concrete types (Computer, Component, ComponentType,
  ComputerState) across computers/*.vue and components/*.vue, using the
  existing inertia/pages/types/UITypes.ts definitions
- Fix UITypes.ts: export ComponentType/ComputerState, switch from interface
  to type (interfaces are never assignable to Inertia's ComponentProps index
  signature), drop the stale componentTypeId/componentStateId fields that
  didn't match the actual Lucid schema (real field is typeId, no component
  state exists)
- Add an asPageProp() boundary cast in the two controllers: Lucid's
  serialize() returns a loosely typed ModelObject that isn't structurally
  assignable to the concrete page prop shapes (and the inertia/** tree is
  excluded from the backend tsconfig, so real types can't be imported
  directly across that boundary)

UTF-8 mojibake fixes (3.3):
- Repair broken accented characters (├®/├á/├┤ -> é/à/ô, Ôé¼ -> €) left over
  from a bad encoding during the GWT->Inertia migration, across
  ComponentEditor.vue, ComputerComponentsTable.vue, SimpleGallery.vue,
  TableComponent.vue, isAdminMode.ts and the custom directives

Misc cleanup (3.5):
- computer.ts: replace console.warn with the app logger (includes
  computerId) when .cost is accessed without preloading components

app/models/computer.ts

@@ -1,6 +1,7 @@
 import { DateTime } from 'luxon'
 import { BaseModel, belongsTo, column, computed, hasMany } from '@adonisjs/lucid/orm'
 import type { BelongsTo, HasMany } from '@adonisjs/lucid/types/relations'
+import logger from '@adonisjs/core/services/logger'
 import ComputerState from '#models/computer_state'
 import ComputerPicture from '#models/computer_picture'
 import Component from '#models/component'
@@ -52,7 +53,10 @@ export default class Computer extends BaseModel {
   @computed()
   get cost(): number {
     if (!this.$preloaded.components) {
-      console.warn('Components not preloaded, cost may be incorrect')
+      logger.warn(
+        { computerId: this.id },
+        'Computer.cost accessed without preloading "components"; returning 0'
+      )
       return 0
     }
     return this.components.reduce((total, component) => total + Number(component.price), 0)