passepartout: v0.4.1 Design Cleanup

- Remove system-prompt-augment mechanism, introduce *standing-mandates*
- Fix false token-overhead claims in DESIGN_DECISIONS + ROADMAP
- Update security vector count 9-10 across all docs and dispatcher docstring
- Rewrite README with agent section, soften aspirational claims
- Register 10 cognitive tools in programming-tools.org with test suite
- Enforce NO-HARDCODED-CONSTANTS in .env.example
- ROADMAP: mark v0.3.x patches DONE, add LOGBOOKs, mark releases
- AGENTS.md: rewrite compact (180 to 50 lines), move refs to CONTRIBUTING
- Normalize org tangle directives to file-level PROPERTY inheritance

.env.example

@@ -67,6 +67,15 @@ PROTOCOL_HMAC_SECRET="change-this-to-a-secure-random-string"
 # Default: @personal
 PRIVACY_FILTER_TAGS="@personal,@health,@finance"
 
+# =============================================================================
+# DISPATCHER RULE LEARNING
+# =============================================================================
+# Number of HITL approvals before a pattern becomes a permanent rule
+DISPATCHER_RULE_THRESHOLD=3
+
+# Where learned rules are persisted
+RULES_FILE="$HOME/memex/system/rules.org"
+
 # =============================================================================
 # BOOTSTRAP
 # =============================================================================