feat: add Poimen Memory deep dive page at /poimen/memory

- Architecture, dataflow, and sequence diagrams (700px iframes)
- Three-tier retrieval section (signature match, graph-boosted, Obsidian)
- Technology stack grid (Rust, pgvector, TEI, Authentik, etc.)
- Wire deepDive link from Memory project card
- Add Poimen timeline card to ExperienceTimeline

lib/translations.json

@@ -164,7 +164,11 @@
             "Graph-RAG with Wiki-Link Indexing (Rust, pgvector, OpenSearch): Built bidirectional link graph from [[wiki-link]] syntax during ingestion. PageRank-style score propagation boosts linked documents' relevance. RRF fusion merges HNSW cosine (pgvector) + BM25 lexical (OpenSearch). WikiScopedFilter constrains traversal to project boundaries.",
             "Three-Tier Context Retrieval (Actix-web, tokio): Async pipeline — Tier 1: MD5 signature match (<50ms), Tier 2: graph-boosted hybrid search with link-distance decay, Tier 3: Obsidian API fallback. Budget-aware assembly drops lower tiers first. Shingle-based Jaccard deduplication (>0.5) prevents redundant chunks.",
             "Hierarchical RBAC (Authentik OIDC, JWT, Kubernetes): Role → AccessRule[] → AccessScope model with project/visibility/owner/group constraints. JWT roles claim maps to YAML rules; AccessGuard.filter_resources() applies post-retrieval filtering. Dual-write indexer (eventual consistency via queue) maintains RBAC-aware views. SOPS/age encryption, ArgoCD deployment."
-          ]
+          ],
+          "deepDive": {
+            "label": "Explore the Memory System →",
+            "url": "/poimen/memory"
+          }
         },
         {
           "title": "Homelab: Production-Grade Kubernetes Platform",
@@ -437,7 +441,11 @@
             "图-RAG维基链接索引化（Rust、pgvector、OpenSearch）：从[[维基链接]]语法构建双向链接图。PageRank风格评分传播提升链接文档的相关性。RRF融合合并HNSW余弦相似度（pgvector）+ BM25词汇排名（OpenSearch）。WikiScopedFilter将遍历限制在项目边界内。",
             "三层上下文检索（Actix-web, tokio）：异步管道——第1层：MD5签名匹配（<50ms），第2层：图增强混合搜索含链接距离衰减，第3层：Obsidian API兜底。预算感知的响应组装优先丢弃低优先层。基于瓦片的Jaccard去重（>0.5）防止冗余块。",
             "分层RBAC（Authentik OIDC、JWT、Kubernetes）：角色→AccessRule[]→AccessScope模型，包含项目/可见性/所有者/组约束。JWT角色声明映射到YAML规则；AccessGuard.filter_resources()应用检索后过滤。双写索引器（通过队列保证最终一致性）维护RBAC感知视图。SOPS/age加密，ArgoCD部署。"
-          ]
+          ],
+          "deepDive": {
+            "label": "探索记忆系统 →",
+            "url": "/poimen/memory"
+          }
         },
         {
           "title": "家庭实验室：生产级 Kubernetes 平台",