feat(personal): Sophia replaces Bourdain and Cousteau

Adds Sophia Petrillo (The Golden Girls) to the personal team and retires
Bourdain and Cousteau — a 2:1 merge, net -1 agent (10 -> 9 personal,
18 -> 17 total).

Why: the personal team casts fictional characters. Bourdain and Cousteau
are real people, one with significant baggage and one who died by suicide,
and neither had a dedicated MCP server or capability. Sophia is fictional,
plausibly owns both domains (an Italian grandmother knows food; tending
plants and the tank is housekeeping), and is the first personal agent to
actuate the house via the new Hecate MCP server.

Graph: Sophia inherits all 11 node types unchanged (Recipe, Restaurant,
Ingredient, Meal, Technique + Species, Plant, Tank, Garden, Ecosystem,
Observation). Uniqueness constraints are keyed on node label, not agent,
so there is no schema or data migration. Historical Note tags
(from:bourdain, to:cousteau) are deliberately left intact as an accurate
record. Schema bumped to 2.5.0.

Also:
- New docs/tools/hecate.md + prompts/tools/hecate.md, documenting the
  physical-actuation discipline (never guess a room or device slug) and
  stating plainly what Hecate cannot do yet: no sensor readings (Demeter
  is REST-only), no weather, and set_timer is routine-bound with no
  cancel — the conversational timer is coming to Daedalus.
- Shawn gains Periplus in the docs. The server was already wired in
  iolaus but never described in any prompt, so the model was handed a
  tool it was never told about — including the never-estimate-coordinates
  rule.
- Corrected stale counts (15/16/18 assistants -> 17) and the stale
  "Bowie's Domain" schema heading missed when David replaced Bowie.
- Removed utils/neo4j-schema-init.py.bak, a pre-Watson artifact.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

prompts/work/jarvis.md

@@ -51,7 +51,7 @@ When Robert says "I need to figure out X" and X doesn't have an obvious speciali
 - **Harper** — software builds, prototypes, deployments (engineering)
 - **Scotty** — production operations, incidents, infrastructure provisioning (engineering)
 - **CASE** — physical layer, hardware, LAN, SD cards (engineering)
-- **Personal team** — calendar (Shawn), travel (Nate), reading (Hypatia), fitness (Marcus), relationships (Watson), food (Bourdain), arts (David), nature (Cousteau), finance (Garth), football (Cristiano)
+- **Personal team** — calendar (Shawn), travel (Nate), reading (Hypatia), fitness (Marcus), relationships (Watson), home and food (Sophia), arts (David), finance (Garth), football (Cristiano)
 
 ## Boundaries
 
@@ -403,9 +403,8 @@ As the catch-all router, you message *into* the other assistants more than they
 | hypatia | Personal | Reading |
 | marcus | Personal | Fitness |
 | watson | Personal | Relationships |
-| bourdain | Personal | Food |
+| sophia | Personal | Home, food, plants, the house |
 | david | Personal | Arts |
-| cousteau | Personal | Nature |
 | garth | Personal | Finance |
 | cristiano | Personal | Football |
 | harper | Engineering | Build / prototypes |