fix(server): unify session workspace root (#266)

core/config/src/main/kotlin/com/correx/core/config/ConfigLoader.kt

@@ -679,7 +679,6 @@ object ConfigLoader {
         val projectSection = sections["project"] ?: emptyMap()
         val project = ProjectConfig(
             enabled = asBoolean(projectSection["enabled"], false),
-            root = asString(projectSection["root"], ""),
             memoryK = asInt(projectSection["memory_k"], DEFAULT_PROJECT_MEMORY_K),
             maxDepth = asInt(projectSection["max_depth"], DEFAULT_PROJECT_MAX_DEPTH),
             ignoreGlobs = asStringList(projectSection["ignore_globs"]).ifEmpty { ProjectConfig.DEFAULT_IGNORES },

core/config/src/main/kotlin/com/correx/core/config/CorrexConfig.kt

@@ -146,12 +146,11 @@ data class PersonalizationConfig(
 /**
  * Project-scoped, cross-session memory. When [enabled], the decision journal is distilled
  * to durable per-repo memory at session end and retrieved (top-[memoryK]) at session start.
- * [root] is the repo root key; empty means the current working directory.
+ * The repository key is always the session's recorded bound workspace, never configuration.
  */
 @Serializable
 data class ProjectConfig(
     val enabled: Boolean = false,
-    val root: String = "",
     val memoryK: Int = 5,
     val maxDepth: Int = 4,
     val ignoreGlobs: List<String> = DEFAULT_IGNORES,

core/config/src/main/kotlin/com/correx/core/config/CorrexConfigWriter.kt

@@ -122,7 +122,6 @@ object CorrexConfigWriter {
 
         b.section("project")
         b.kv("enabled", cfg.project.enabled)
-        b.kv("root", str(cfg.project.root))
         b.kv("memory_k", cfg.project.memoryK)
         b.kv("max_depth", cfg.project.maxDepth)
         b.kv("inject_top_k", cfg.project.injectTopK)

core/config/src/test/kotlin/com/correx/core/config/ConfigLoaderTest.kt

@@ -189,7 +189,6 @@ class ConfigLoaderTest {
         val toml = """
             [project]
             enabled = true
-            root = "/home/me/repo"
             memory_k = 8
         """.trimIndent()
 
@@ -199,7 +198,6 @@ class ConfigLoaderTest {
         val result = parseTomlMethod.invoke(ConfigLoader, toml) as CorrexConfig
 
         assertEquals(true, result.project.enabled)
-        assertEquals("/home/me/repo", result.project.root)
         assertEquals(8, result.project.memoryK)
     }
 
@@ -216,7 +214,6 @@ class ConfigLoaderTest {
         val result = parseTomlMethod.invoke(ConfigLoader, toml) as CorrexConfig
 
         assertEquals(false, result.project.enabled)
-        assertEquals("", result.project.root)
         assertEquals(5, result.project.memoryK)
     }
 

core/config/src/test/kotlin/com/correx/core/config/CorrexConfigWriterTest.kt

@@ -36,7 +36,7 @@ class CorrexConfigWriterTest {
                 narration = NarrationSettings(temperature = 0.1, topP = 0.95, maxTokens = 256, maxPerRun = 3),
             ),
             personalization = PersonalizationConfig(enabled = true, learn = true),
-            project = ProjectConfig(enabled = true, root = "/repo", memoryK = 8, maxDepth = 6, injectTopK = 40),
+            project = ProjectConfig(enabled = true, memoryK = 8, maxDepth = 6, injectTopK = 40),
             git = GitConfig(enabled = true, remote = "gitea", baseBranch = "develop", author = "Correx <bot@example.test>"),
             modelsSettings = ModelsSettings(defaultModel = "m1", host = "0.0.0.0", port = 10001),
             orchestration = OrchestrationKnobs(stageTimeoutMs = 90_000, journalCompactionTokenThreshold = 12_000),