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- skills/leisure/find-nearby/ → DELETED (fully superseded)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/.

tests/hermes_cli/test_cron.py

@@ -54,12 +54,12 @@ class TestCronCommandLifecycle:
                 deliver=None,
                 repeat=None,
                 skill=None,
-                skills=["find-nearby", "blogwatcher"],
+                skills=["maps", "blogwatcher"],
                 clear_skills=False,
             )
         )
         updated = get_job(job["id"])
-        assert updated["skills"] == ["find-nearby", "blogwatcher"]
+        assert updated["skills"] == ["maps", "blogwatcher"]
         assert updated["name"] == "Edited Job"
         assert updated["prompt"] == "Revised prompt"
         assert updated["schedule_display"] == "every 120m"
@@ -95,7 +95,7 @@ class TestCronCommandLifecycle:
                 deliver=None,
                 repeat=None,
                 skill=None,
-                skills=["blogwatcher", "find-nearby"],
+                skills=["blogwatcher", "maps"],
             )
         )
         out = capsys.readouterr().out
@@ -103,5 +103,5 @@ class TestCronCommandLifecycle:
 
         jobs = list_jobs()
         assert len(jobs) == 1
-        assert jobs[0]["skills"] == ["blogwatcher", "find-nearby"]
+        assert jobs[0]["skills"] == ["blogwatcher", "maps"]
         assert jobs[0]["name"] == "Skill combo"