Add the four system-wiring gaps (shared substrate, real harm, deterrence feedback, reintegration)

A full-lifecycle audit found the gaps are missing CONNECTIONS, not features.
Without them the suite is a linear pipeline; with them it is a cycle. The shared
substrate (propensity stat + SecuredContextOf + CriminalRecord) must be built
first -- everything reads it.

ROADMAP.md

@@ -39,6 +39,39 @@ prisoner does not expect a spa. Don't over-model comfort; a little goes a long w
 
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+## System wiring — the four connections that make it a system, not a pipeline
+
+A full-lifecycle audit (propensity → crime → policing → prison → release → back) found the gaps
+are not missing *features* — they are missing *connections*. Without these four, the suite is a
+linear pipeline of modules; with them, it is a living system. Build them as first-class, not
+afterthoughts.
+
+- **A. A shared substrate (build FIRST).** One implementation, in Contraband (the central
+  framework), that every module reads and writes: a **propensity** stat (nature × nurture, the
+  `Disposition` engine generalized), the **`SecuredContextOf(pawn)`** predicate
+  (prisoner/ward/slave/zone), and a per-pawn **`CriminalRecord`** (crimes committed, escapes,
+  contraband made, reform progress). Without this, each module reinvents "how criminal is this
+  pawn" and they disagree — the crime system thinks a pawn is dangerous while classification
+  thinks they are docile. Everything downstream keys off the substrate.
+
+- **B. Crime has real effects.** Theft actually removes the goods; assault actually injures;
+  sabotage actually damages the building; targets are chosen via vanilla relationships. Without
+  real, detectable harm, crime is a flag with nothing for an investigation to find (no missing
+  goods = no evidence).
+
+- **C. Deterrence feedback closes the loop.** Catching and punishing crime feeds back into the
+  propensity engine: **visible justice deters** (others' propensity drops), **unpunished crime
+  spreads** (propensity rises when it pays), **visible cruelty radicalizes** (over-harsh
+  punishment breeds resentment → more crime). This is what makes policing *govern* rather than
+  merely clean up, and it is the connection that turns the pipeline into a cycle.
+
+- **D. Reintegration.** A caught → imprisoned → reformed → released colonist carries their record
+  back: distrust from those they wronged, or a genuine clean slate if truly reformed
+  (ideology-flavoured). Closes the colonist-crime cycle instead of leaving it dangling.
+
+A/B/C are load-bearing; D rounds it out. These are the *wiring*; everything in the module table
+below is the *features* that hang off it.
+
 ## Suite modules
 
 | Mod | Scope | Status |