chore: archive v1.2 milestone — Extended Protocol Coverage

35 traffic classes across 9 protocol families shipped. Archives
ROADMAP, REQUIREMENTS, and phase directories to milestones/v1.2-*.
Updates README with new protocol families, sound design table,
and [groups] TOML config documentation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/milestones/v1.2-phases/11-synthesis-and-config-layer/11-DISCUSSION-LOG.md

@@ -0,0 +1,62 @@
+# Phase 11: Synthesis and Config Layer - Discussion Log
+
+> **Audit trail only.** Do not use as input to planning, research, or execution agents.
+> Decisions are captured in CONTEXT.md — this log preserves the alternatives considered.
+
+**Date:** 2026-03-27
+**Phase:** 11-synthesis-and-config-layer
+**Areas discussed:** Group header format, TOML groups schema, LDAP/Kerberos/Syslog handling
+**Mode:** --auto (all decisions auto-selected)
+
+---
+
+## Group Header Format in PrintConfig
+
+| Option | Description | Selected |
+|--------|-------------|----------|
+| Comment headers with blank line separator | `# Mail` followed by blank line, then classes. Matches existing comment patterns. | ✓ |
+| Section dividers with dashes | `# --- Mail ---` style separator | |
+| No headers (flat list) | Keep current flat listing, rely on frequency ordering | |
+
+**User's choice:** [auto] Comment headers with blank line separator (recommended default)
+**Notes:** Matches existing `# Classification rules` comment pattern in PrintConfig output
+
+---
+
+## TOML Groups Config Schema
+
+| Option | Description | Selected |
+|--------|-------------|----------|
+| Simple key-value map | `[groups]` with `IMAP = "Web"` pairs. Simplest approach. | ✓ |
+| Nested table | `[groups.Mail]` with `members = ["IMAP", "POP3"]` — more structured but heavier | |
+| Array of tables | `[[groups]]` with name/members fields — most flexible but overkill | |
+
+**User's choice:** [auto] Simple key-value map (recommended default)
+**Notes:** Consistent with existing `[sounds.X]` pattern. Key = class name, value = target group.
+
+---
+
+## LDAP/Kerberos/Syslog Handling
+
+| Option | Description | Selected |
+|--------|-------------|----------|
+| Add to AllClasses() + ClassFreqConfigs | Complete the full set, fix broken tests. autoAssignFreq-derived Hz. | ✓ |
+| Keep out of AllClasses() | Leave as constants-only, no synthesis. Tests remain broken. | |
+| Add to ClassFreqConfigs only | Add configs but don't add to AllClasses(). Partial fix. | |
+
+**User's choice:** [auto] Add to AllClasses() + ClassFreqConfigs (recommended default)
+**Notes:** Completes the full 35-class set. Fixes TestAllClassesHaveConfig and related tests.
+
+---
+
+## Claude's Discretion
+
+- Exact Hz values for LDAP/Kerberos/Syslog (autoAssignFreq FNV hash)
+- Pan positions for LDAP/Kerberos/Syslog
+- Test structure and naming updates
+- rawConfig struct extension for `[groups]`
+- Group reassignment pipeline in merge/load
+
+## Deferred Ideas
+
+None — discussion stayed within phase scope.