Polish player profile layout name fallback and user copy

ai/tasks/done/TASK-256-polish-player-profile-layout-name-fallback-and-user-copy.md

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+# TASK-256 - Polish player profile layout, name fallback and user copy
+
+## Summary
+
+This task polishes the public player profile in `stats.html` after TASK-253 and TASK-255.
+
+Changes included:
+
+- moved external profile links out of the lower summary grid
+- kept selected search-result names as UI fallback when the profile payload has no player name
+- replaced technical user-facing copy with player-friendly messages
+- kept KPM visibility restricted to `kpm_status == ready`
+
+## External Profile Layout
+
+`Perfiles externos` now renders directly under the `Perfil personal` state text and before the weekly/monthly comparison cards.
+
+The lower summary grid now only contains:
+
+- `Identidad`
+- `Ventana semanal`
+- `Ventana mensual`
+
+The links remain responsive and wrap on narrow screens.
+
+## Player Name Fallback
+
+Root cause:
+
+- degraded weekly/monthly profile payloads can return no `player_name`
+- the frontend then fell back to `Sin nombre`
+- this ignored the player name already selected from search results
+
+Fix:
+
+- the selected result name is passed into `loadPlayerProfile(...)`
+- visible name priority is:
+  - payload player name if it is usable
+  - selected search-result name
+  - current search text if it looks like a name
+  - `Jugador seleccionado`
+
+Raw Steam/Epic identifiers are not used as visible profile names.
+
+## User Copy
+
+Replaced visible technical wording:
+
+- `Backend no disponible...` -> `Servicio no disponible...`
+- `Verifica backend...` -> `Intentalo de nuevo en unos segundos.`
+- `Jugador sin estadisticas suficientes...` -> `Todavia no hay estadisticas suficientes para este jugador.`
+- `Ranking ausente` -> `Sin posicion`
+- backend/recalculation note -> `Comparativa basada en los datos disponibles actualmente.`
+
+Internal variable names and fetch URLs still use backend terminology where required by code.
+
+## Validation
+
+Executed:
+
+- `node --check frontend/assets/js/stats.js`
+
+Static checks:
+
+- no visible `Sin nombre` fallback remains in stats UI
+- no visible profile copy mentions backend, endpoint, payload, read model, ranking block, or recalculation
+- KPM is still rendered only for `kpm_status == ready`
+- Steam profile links still resolve to Steam + Hellor + HLL Records + Helo
+- Epic profile links still resolve to Hellor + HLL Records
+
+## Notes
+
+- No backend changes.
+- No TeamKills changes.
+- No asset changes.
+- No scheduler/RCON/server configuration changes.