Add demo cases (HarvestLink v1/v2), subscription technical contract, portal + ops-portal HTML

- demo-case-harvestlink.md + v2: fictional staged proposals for product-marketing video (no PII)
- CONTRACT.md: subscription model / contact form / receipt fixes technical contract (read-only analysis 2026-08-19)
- portal/index.html + ops-portal/: customer portal + ops portal single-file builds
- .gitignore: demo-creds*.txt excluded

demo-case-harvestlink-v2.md

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+# VerdictTank Demo Case: HarvestLink (Revised)
+
+Revised after panel feedback. Same fictional company; changes are real responses to the
+first review's fatal flaws: corrected market sizing, added pilot unit economics, a worked
+pricing waterfall, a compliance plan, and a reframed Sacramento-only ask.
+
+---
+
+## HarvestLink: Direct Farm-to-Restaurant Sourcing
+
+### The Problem
+Independent restaurants lose roughly 30% of their produce spend to spoilage and distributor
+markup. Small and mid-size farms have no efficient channel to reach restaurants directly, so
+they sell through aggregators that take the margin.
+
+### The Solution
+HarvestLink is a marketplace and logistics platform connecting local farms directly to
+independent restaurants. Restaurants order through a mobile app; farms fulfill through a shared
+cold-chain delivery network. Built-in demand forecasting tells farms what to plant and
+restaurants what to order, cutting waste on both sides.
+
+### Market (corrected)
+US independent restaurants spend an estimated $28 billion a year on fresh produce. Our three
+launch metros (Sacramento, Austin, Portland) hold roughly 7.3 million people, about 2.2% of the
+US population, which implies a served market near $620 million, not the $1.9 billion we
+previously stated. Bottom-up check: about 4,800 independent restaurants across the three metros
+at an average $130,000 a year in produce spend lands on the same ~$620 million figure.
+
+### Business Model (with pricing waterfall)
+8% take rate on marketplace transactions plus a $99/month restaurant subscription after a
+60-day free trial. Farms sell at a 12-18% premium over their farm-gate wholesale price, while
+restaurants still pay less than distributor pricing.
+
+Worked waterfall on a $3,000/month produce basket:
+- Distributor today: $2,308 wholesale x 30% markup = $3,000.
+- HarvestLink: $2,308 wholesale x 12% farm premium = $2,585, plus 8% take = $2,792.
+- Restaurant pays $2,792, saving $208/month before the $99 subscription; net ~$109/month after.
+
+### Traction and Unit Economics (Sacramento pilot, actual)
+12 farms and 9 restaurants live. $18,400 GMV in three months, 71% repeat order rate. Two
+restaurants churned over delivery windows.
+- Average order value: $240.
+- Order frequency: 2.8 orders per restaurant per month.
+- GMV per restaurant: $681/month.
+- Take revenue: 8% x $18,400 = $1,472 for the quarter; subscription is $0 during trials.
+- Delivery: shared cold-chain routes at $28/stop today. Take revenue alone ($19/stop) does not
+  cover delivery; the $99 subscription is what makes a route contribution-positive. Route
+  break-even is roughly 45-60 restaurants per route at current AOV and frequency. We are at 9,
+  so the plan is Sacramento-only density before any expansion.
+
+### Compliance Plan
+PACA license, FSMA/cold-chain HACCP food-safety procedures, cargo and liability insurance,
+written supplier and restaurant terms, and a recall procedure before scaling beyond the pilot.
+Multistate compliance is deferred: we are Sacramento-only for this round, so California-only
+compliance applies.
+
+### Team and Hiring
+Founder with seven years in restaurant operations and supply chain at a regional chain, plus one
+contract engineer. This round funds a full-time logistics/operations lead and a sales hire;
+both are prerequisites before any second-city launch.
+
+### The Ask
+$250,000 to run a 12-month Sacramento-only proof: grow 9 to 60 restaurants, hire the
+logistics and sales leads, lock in a cold-chain partner, and reach route-level contribution
+breakeven. Austin and Portland are deferred until Sacramento breakeven is proven.
+
+### Use of Funds
+45% logistics and delivery network, 30% sales and onboarding, 15% engineering, 10% compliance
+and operations.