Add chat-memory module: MessageWindowChatMemory, JDBC and Redis repositories, per-user conversation IDs

Real PostgreSQL 16 and Redis Stack 7.4; 24 tests write output/01-24. Covers the 20-message default window with no property, the 36-character conversation_id, tool messages dropped by JdbcChatMemoryRepository, concurrent add() on one conversation, a 1.x table under the 2.0 repository, the Redis repository silently backing off for a custom ChatMemory, and the removal of PromptChatMemoryAdvisor. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Ja4jkzrbQ4LQZBNrb5mkZE
2026-09-24 15:56:47 +00:00
parent c1e36c6c09
commit 823f6fac5b
65 changed files with 2548 additions and 0 deletions
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+# Input tokens per call, 30 turns, four pruning strategies
+
+Encoding: o200k_base (JTokkit estimate). Each turn: ~25-token question, ~40-token answer, ~6-token system prompt.
+
+turn    unbounded  window=10  window=20  budget=400tok
+1              26         26         26             26
+2              79         79         79             79
+5             238        238        238            238
+10            503        291        503            397
+11            556        291        556            397
+15            768        291        556            397
+20           1033        291        556            397
+21           1086        291        556            397
+25           1298        291        556            397
+30           1563        291        556            397
+
+sum         23835       7935      13765          10426
+sum as % of unbounded: window=10 33%, window=20 58%, budget=400tok 44%