feat(memory): ClawVM typed pages, MemReader quality gate, APEX-MEM graph (#3260)

* feat(memory): ClawVM typed pages, MemReader quality gate, APEX-MEM graph (#3221, #3222, #3223)

Closes #3221, #3222, #3223.

**#3221 — ClawVM-style typed page compaction (zeph-context)**
- New `TypedPage` with BLAKE3 content-hash page id and `PageType` enum
  (ToolOutput, ConversationTurn, MemoryExcerpt, SystemContext)
- Per-type `PageInvariant` trait with four implementations enforcing
  minimum-fidelity invariants at compaction boundaries
- `InvariantRegistry` and bounded async `CompactionAuditSink` (mpsc)
- `ContextAssembler::gather()` classifies every slot into a typed page
  and appends an audit record per compacted page

**#3222 — MemReader write quality gate (zeph-memory)**
- New `QualityGate` scoring three dimensions: information value
  (cosine similarity vs recent context), reference completeness
  (pronoun/deictic heuristic), contradiction risk (graph edge conflicts)
- Fail-open contract: embed/LLM/graph errors yield neutral defaults
- Wired into `SemanticMemory::remember()` and `remember_with_parts()`
  after A-MAC admission via `with_quality_gate()` builder
- Disabled by default; configurable via `[memory.quality_gate]` TOML

**#3223 — APEX-MEM append-only property graph for MAGMA (zeph-memory)**
- SQLite migration 075: adds `supersedes`, `canonical_relation` to
  `graph_edges`; new `edge_reassertions` provenance table
- `GraphStore::insert_or_supersede`: atomic supersession (single tx),
  byte-identical reassertion path, supersede depth cap (64 hops)
- `OntologyTable` with ArcSwap + LRU-4096 cache for predicate
  normalization with LLM fallback
- `ConflictResolver` with recency / confidence / llm strategies

* build: update lru 0.12.5 → 0.17.0

Author: bug-ops

CHANGELOG.md

@@ -6,6 +6,31 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+### Added
+
+- **feat(memory): ClawVM-style typed page compaction for token-budget-aware context management** (#3221) —
+  introduces `TypedPage` (BLAKE3 content-hash id), `PageType` enum (ToolOutput, ConversationTurn,
+  MemoryExcerpt, SystemContext), per-type `PageInvariant` implementations, `InvariantRegistry`,
+  and `CompactionAuditSink` (bounded async mpsc) in `zeph-context`. `ContextAssembler::gather()`
+  classifies every context slot into a typed page, enforces minimum-fidelity invariants at
+  compaction boundaries, and appends an audit record per compacted page.
+
+- **feat(memory): MemReader write quality gate — score-based admission before long-term memory persistence** (#3222) —
+  new `QualityGate` in `zeph-memory` scores each `remember()` call on three dimensions:
+  information value (embedding cosine similarity vs recent context), reference completeness
+  (pronoun/deictic heuristic), and contradiction risk (graph edge conflict check). Writes below
+  the configurable threshold are rejected; rejection rate is tracked as a rolling metric.
+  Gate is fail-open and disabled by default (`[memory.quality_gate]` TOML section).
+  Wired into `SemanticMemory::remember()` and `remember_with_parts()` after A-MAC admission.
+
+- **feat(memory): APEX-MEM append-only property graph with temporal supersession for MAGMA** (#3223) —
+  extends `graph_edges` schema with `supersedes` (append-only pointer to prior head) and
+  `canonical_relation` (normalized predicate) columns via migration 075. Adds `edge_reassertions`
+  table for byte-identical reassertion provenance. New `OntologyTable` (ArcSwap + LRU-4096 cache)
+  normalizes relation predicates with LLM fallback. New `ConflictResolver` (recency / confidence /
+  llm strategies) resolves contradictory edges in SYNAPSE recall. `insert_or_supersede` and
+  `check_supersede_depth` (recursive CTE, depth-capped) added to `GraphStore`.
+
 ### Fixed
 
 - **fix(index): wire `CodeRetriever` into `IndexState` for automatic code RAG injection** (#3236) —

Cargo.lock

@@ -55,7 +55,7 @@ notify = "8.2.0"
 notify-debouncer-mini = "0.7"
 nucleo-matcher = "0.3.1"
 ollama-rs = { version = "0.3.4", default-features = false }
-open = "5.3.3"
+open = "5.3.4"
 opentelemetry = "0.31"
 opentelemetry-otlp = { version = "0.31.1", default-features = false }
 opentelemetry_sdk = { version = "0.31", default-features = false }
@@ -64,6 +64,7 @@ pdf-extract = "0.10"
 metrics = "0.24.3"
 metrics-util = "0.20.1"
 arc-swap = "1.9.1"
+lru = "0.17.0"
 parking_lot = "0.12.5"
 prometheus-client = "0.24.1"
 petgraph = "0.8.3"
@@ -106,8 +107,8 @@ tokio = "1"
 tokio-stream = "0.1"
 tokio-tungstenite = { version = "0.29", default-features = false }
 tokio-util = "0.7"
-toml = "1.1.2"
-toml_edit = "0.25.11"
+toml = "1.1.2+spec-1.1.0"
+toml_edit = "0.25.11+spec-1.1.0"
 tower = "0.5.3"
 tower-http = { version = "0.6.8", default-features = false }
 tracing = "0.1"

Cargo.toml

@@ -13,9 +13,12 @@ description = "Context budget, manager, compaction strategy, and assembler for t
 readme = "README.md"
 
 [dependencies]
+blake3.workspace = true
 futures.workspace = true
 parking_lot.workspace = true
 regex.workspace = true
+serde = { workspace = true, features = ["derive"] }
+serde_json.workspace = true
 thiserror.workspace = true
 tokio = { workspace = true, features = ["macros", "rt-multi-thread", "sync", "time"] }
 tracing.workspace = true
@@ -25,7 +28,7 @@ zeph-llm.workspace = true
 zeph-memory.workspace = true
 
 [dev-dependencies]
-serde_json.workspace = true
+tempfile.workspace = true
 
 [lints]
 workspace = true

crates/zeph-context/Cargo.toml

@@ -29,3 +29,4 @@ pub mod manager;
 pub mod microcompact;
 pub mod slot;
 pub mod summarization;
+pub mod typed_page;