Initial commit — design docs + Phase 0 validation harness

Sets up the Socrata project repo with:

docs/ — strategy and design documents
  - idea.md: full product vision
  - implementation-plan.md: Phase 0 + Phase 1 MVP plan
  - phase-0-validation.md: 2-week validation experiment strategy
  - phase-0-plan.md: concrete Phase 0 build plan
  - phase-0-results.md: Phase 0 gate outcome — GO for MVP
  - sysml-modeling.md: metamodel + SE discipline + validation rules
  - socrates.md: agent character, surfaces, modes, prompts, lifecycle
  - sync.md: bidirectional text↔diagram sync engineering
  - design-source/: HTML/CSS/JS handoff bundle from Claude Design

phase-0/ — validated harness (CLI, no UI, no DB)
  - LM Studio (local OpenAI-compatible) generation + detection + judge
  - PlantUML rendering for SysML model visualization
  - 10-seed corpus (8 working + 2 holdouts)
  - 5 corpus runs with iteration history in reports/
  - Final gate: 10/10 pass, mean 4.32/5, holdouts validated

Phase 1 MVP scope and milestones documented in implementation-plan.md.

phase-0/seeds/02-habit-coach.json

@@ -0,0 +1,18 @@
+{
+  "id": "02-habit-coach",
+  "title": "Habit Coach",
+  "problem": "Parents of school-age kids want to limit screen time but the existing tooling (OS-level limits, single-app blockers) is either too coarse or too easily bypassed. Worse, parents have no visibility into whether limits are working — they only see the friction.",
+  "targetUser": "Parents of kids aged 8–14 who already use one or more screen-time tools and find them inadequate.",
+  "desiredOutcome": "A weekly conversation between parent and child about screen time becomes routine, grounded in shared data instead of conflict.",
+  "initialHypothesis": "Parents will adopt a tool that's child-visible and child-collaborative if it lets them stop being the enforcer.",
+  "constraints": [
+    "Must work alongside iOS Screen Time and Google Family Link, not replace them",
+    "Child data must be parent-controlled per COPPA (US) and GDPR-K (EU)",
+    "No social features for kids — no leaderboards, no public sharing"
+  ],
+  "meta": {
+    "isHoldout": false,
+    "expectedDifficulty": "medium",
+    "testsFor": ["consumer-saas", "multi-actor", "regulatory"]
+  }
+}