feat(skills): consolidate find-nearby into maps as a single location skill

find-nearby and the (new) maps optional skill both used OpenStreetMap's
Overpass + Nominatim to answer the same question — 'what's near this
location?' — so shipping both would be duplicate code for overlapping
capability. Consolidate into one active-by-default skill at
skills/productivity/maps/ that is a strict superset of find-nearby.

Moves + deletions:
- optional-skills/productivity/maps/ → skills/productivity/maps/ (active,
  no install step needed)
- skills/leisure/find-nearby/ → DELETED (fully superseded)

Upgrades to maps_client.py so it covers everything find-nearby did:
- Overpass server failover — tries overpass-api.de then
  overpass.kumi.systems so a single-mirror outage doesn't break the skill
  (new overpass_query helper, used by both nearby and bbox)
- nearby now accepts --near "<address>" as a shortcut that auto-geocodes,
  so one command replaces the old 'search → copy coords → nearby' chain
- nearby now accepts --category (repeatable) for multi-type queries in
  one call (e.g. --category restaurant --category bar), results merged
  and deduped by (osm_type, osm_id), sorted by distance, capped at --limit
- Each nearby result now includes maps_url (clickable Google Maps search
  link) and directions_url (Google Maps directions from the search point
  — only when a ref point is known)
- Promoted commonly-useful OSM tags to top-level fields on each result:
  cuisine, hours (opening_hours), phone, website — instead of forcing
  callers to dig into the raw tags dict

SKILL.md:
- Version bumped 1.1.0 → 1.2.0, description rewritten to lead with
  capability surface
- New 'Working With Telegram Location Pins' section replacing
  find-nearby's equivalent workflow
- metadata.hermes.supersedes: [find-nearby] so tooling can flag any
  lingering references to the old skill

External references updated:
- optional-skills/productivity/telephony/SKILL.md — related_skills
  find-nearby → maps
- website/docs/reference/skills-catalog.md — removed the (now-empty)
  'leisure' section, added 'maps' row under productivity
- website/docs/user-guide/features/cron.md — find-nearby example
  usages swapped to maps
- tests/tools/test_cronjob_tools.py, tests/hermes_cli/test_cron.py,
  tests/cron/test_scheduler.py — fixture string values swapped
- cli.py:5290 — /cron help-hint example swapped

Not touched:
- RELEASE_v0.2.0.md — historical record, left intact

E2E-verified live (Nominatim + Overpass, one query each):
- nearby --near "Times Square" --category restaurant --category bar → 3 results,
  sorted by distance, all with maps_url, directions_url, cuisine, phone, website
  where OSM had the tags

All 111 targeted tests pass across tests/cron/, tests/tools/, tests/hermes_cli/.

website/docs/user-guide/features/cron.md

@@ -30,7 +30,7 @@ Cron-run sessions cannot recursively create more cron jobs. Hermes disables cron
 /cron add 30m "Remind me to check the build"
 /cron add "every 2h" "Check server status"
 /cron add "every 1h" "Summarize new feed items" --skill blogwatcher
-/cron add "every 1h" "Use both skills and combine the result" --skill blogwatcher --skill find-nearby
+/cron add "every 1h" "Use both skills and combine the result" --skill blogwatcher --skill maps
 ```
 
 ### From the standalone CLI
@@ -40,7 +40,7 @@ hermes cron create "every 2h" "Check server status"
 hermes cron create "every 1h" "Summarize new feed items" --skill blogwatcher
 hermes cron create "every 1h" "Use both skills and combine the result" \
   --skill blogwatcher \
-  --skill find-nearby \
+  --skill maps \
   --name "Skill combo"
 ```
 
@@ -77,7 +77,7 @@ Skills are loaded in order. The prompt becomes the task instruction layered on t
 ```python
 cronjob(
     action="create",
-    skills=["blogwatcher", "find-nearby"],
+    skills=["blogwatcher", "maps"],
     prompt="Look for new local events and interesting nearby places, then combine them into one short brief.",
     schedule="every 6h",
     name="Local brief",
@@ -95,7 +95,7 @@ You do not need to delete and recreate jobs just to change them.
 ```bash
 /cron edit <job_id> --schedule "every 4h"
 /cron edit <job_id> --prompt "Use the revised task"
-/cron edit <job_id> --skill blogwatcher --skill find-nearby
+/cron edit <job_id> --skill blogwatcher --skill maps
 /cron edit <job_id> --remove-skill blogwatcher
 /cron edit <job_id> --clear-skills
 ```
@@ -105,8 +105,8 @@ You do not need to delete and recreate jobs just to change them.
 ```bash
 hermes cron edit <job_id> --schedule "every 4h"
 hermes cron edit <job_id> --prompt "Use the revised task"
-hermes cron edit <job_id> --skill blogwatcher --skill find-nearby
-hermes cron edit <job_id> --add-skill find-nearby
+hermes cron edit <job_id> --skill blogwatcher --skill maps
+hermes cron edit <job_id> --add-skill maps
 hermes cron edit <job_id> --remove-skill blogwatcher
 hermes cron edit <job_id> --clear-skills
 ```