diff --git a/.serena/.gitignore b/.serena/.gitignore
new file mode 100644
index 0000000..2e510af
--- /dev/null
+++ b/.serena/.gitignore
@@ -0,0 +1,2 @@
+/cache
+/project.local.yml
diff --git a/.serena/project.yml b/.serena/project.yml
new file mode 100644
index 0000000..bd11eb7
--- /dev/null
+++ b/.serena/project.yml
@@ -0,0 +1,138 @@
+# the name by which the project can be referenced within Serena
+project_name: "JGJS2026"
+
+
+# list of languages for which language servers are started; choose from:
+#   al                  bash                clojure             cpp                 csharp
+#   csharp_omnisharp    dart                elixir              elm                 erlang
+#   fortran             fsharp              go                  groovy              haskell
+#   java                julia               kotlin              lua                 markdown
+#   matlab              nix                 pascal              perl                php
+#   php_phpactor        powershell          python              python_jedi         r
+#   rego                ruby                ruby_solargraph     rust                scala
+#   swift               terraform           toml                typescript          typescript_vts
+#   vue                 yaml                zig
+#   (This list may be outdated. For the current list, see values of Language enum here:
+#   https://github.com/oraios/serena/blob/main/src/solidlsp/ls_config.py
+#   For some languages, there are alternative language servers, e.g. csharp_omnisharp, ruby_solargraph.)
+# Note:
+#   - For C, use cpp
+#   - For JavaScript, use typescript
+#   - For Free Pascal/Lazarus, use pascal
+# Special requirements:
+#   Some languages require additional setup/installations.
+#   See here for details: https://oraios.github.io/serena/01-about/020_programming-languages.html#language-servers
+# When using multiple languages, the first language server that supports a given file will be used for that file.
+# The first language is the default language and the respective language server will be used as a fallback.
+# Note that when using the JetBrains backend, language servers are not used and this list is correspondingly ignored.
+languages:
+- vue
+
+# the encoding used by text files in the project
+# For a list of possible encodings, see https://docs.python.org/3.11/library/codecs.html#standard-encodings
+encoding: "utf-8"
+
+# line ending convention to use when writing source files.
+# Possible values: unset (use global setting), "lf", "crlf", or "native" (platform default)
+# This does not affect Serena's own files (e.g. memories and configuration files), which always use native line endings.
+line_ending:
+
+# The language backend to use for this project.
+# If not set, the global setting from serena_config.yml is used.
+# Valid values: LSP, JetBrains
+# Note: the backend is fixed at startup. If a project with a different backend
+# is activated post-init, an error will be returned.
+language_backend:
+
+# whether to use project's .gitignore files to ignore files
+ignore_all_files_in_gitignore: true
+
+# list of additional paths to ignore in this project.
+# Same syntax as gitignore, so you can use * and **.
+# Note: global ignored_paths from serena_config.yml are also applied additively.
+ignored_paths: []
+
+# whether the project is in read-only mode
+# If set to true, all editing tools will be disabled and attempts to use them will result in an error
+# Added on 2025-04-18
+read_only: false
+
+# list of tool names to exclude.
+# This extends the existing exclusions (e.g. from the global configuration)
+#
+# Below is the complete list of tools for convenience.
+# To make sure you have the latest list of tools, and to view their descriptions, 
+# execute `uv run scripts/print_tool_overview.py`.
+#
+#  * `activate_project`: Activates a project by name.
+#  * `check_onboarding_performed`: Checks whether project onboarding was already performed.
+#  * `create_text_file`: Creates/overwrites a file in the project directory.
+#  * `delete_lines`: Deletes a range of lines within a file.
+#  * `delete_memory`: Deletes a memory from Serena's project-specific memory store.
+#  * `execute_shell_command`: Executes a shell command.
+#  * `find_referencing_code_snippets`: Finds code snippets in which the symbol at the given location is referenced.
+#  * `find_referencing_symbols`: Finds symbols that reference the symbol at the given location (optionally filtered by type).
+#  * `find_symbol`: Performs a global (or local) search for symbols with/containing a given name/substring (optionally filtered by type).
+#  * `get_current_config`: Prints the current configuration of the agent, including the active and available projects, tools, contexts, and modes.
+#  * `get_symbols_overview`: Gets an overview of the top-level symbols defined in a given file.
+#  * `initial_instructions`: Gets the initial instructions for the current project.
+#     Should only be used in settings where the system prompt cannot be set,
+#     e.g. in clients you have no control over, like Claude Desktop.
+#  * `insert_after_symbol`: Inserts content after the end of the definition of a given symbol.
+#  * `insert_at_line`: Inserts content at a given line in a file.
+#  * `insert_before_symbol`: Inserts content before the beginning of the definition of a given symbol.
+#  * `list_dir`: Lists files and directories in the given directory (optionally with recursion).
+#  * `list_memories`: Lists memories in Serena's project-specific memory store.
+#  * `onboarding`: Performs onboarding (identifying the project structure and essential tasks, e.g. for testing or building).
+#  * `prepare_for_new_conversation`: Provides instructions for preparing for a new conversation (in order to continue with the necessary context).
+#  * `read_file`: Reads a file within the project directory.
+#  * `read_memory`: Reads the memory with the given name from Serena's project-specific memory store.
+#  * `remove_project`: Removes a project from the Serena configuration.
+#  * `replace_lines`: Replaces a range of lines within a file with new content.
+#  * `replace_symbol_body`: Replaces the full definition of a symbol.
+#  * `restart_language_server`: Restarts the language server, may be necessary when edits not through Serena happen.
+#  * `search_for_pattern`: Performs a search for a pattern in the project.
+#  * `summarize_changes`: Provides instructions for summarizing the changes made to the codebase.
+#  * `switch_modes`: Activates modes by providing a list of their names
+#  * `think_about_collected_information`: Thinking tool for pondering the completeness of collected information.
+#  * `think_about_task_adherence`: Thinking tool for determining whether the agent is still on track with the current task.
+#  * `think_about_whether_you_are_done`: Thinking tool for determining whether the task is truly completed.
+#  * `write_memory`: Writes a named memory (for future reference) to Serena's project-specific memory store.
+excluded_tools: []
+
+# list of tools to include that would otherwise be disabled (particularly optional tools that are disabled by default).
+# This extends the existing inclusions (e.g. from the global configuration).
+included_optional_tools: []
+
+# fixed set of tools to use as the base tool set (if non-empty), replacing Serena's default set of tools.
+# This cannot be combined with non-empty excluded_tools or included_optional_tools.
+fixed_tools: []
+
+# list of mode names to that are always to be included in the set of active modes
+# The full set of modes to be activated is base_modes + default_modes.
+# If the setting is undefined, the base_modes from the global configuration (serena_config.yml) apply.
+# Otherwise, this setting overrides the global configuration.
+# Set this to [] to disable base modes for this project.
+# Set this to a list of mode names to always include the respective modes for this project.
+base_modes:
+
+# list of mode names that are to be activated by default.
+# The full set of modes to be activated is base_modes + default_modes.
+# If the setting is undefined, the default_modes from the global configuration (serena_config.yml) apply.
+# Otherwise, this overrides the setting from the global configuration (serena_config.yml).
+# This setting can, in turn, be overridden by CLI parameters (--mode).
+default_modes:
+
+# initial prompt for the project. It will always be given to the LLM upon activating the project
+# (contrary to the memories, which are loaded on demand).
+initial_prompt: ""
+
+# time budget (seconds) per tool call for the retrieval of additional symbol information
+# such as docstrings or parameter information.
+# This overrides the corresponding setting in the global configuration; see the documentation there.
+# If null or missing, use the setting from the global configuration.
+symbol_info_budget:
+
+# list of regex patterns which, when matched, mark a memory entry as read‑only.
+# Extends the list from the global configuration, merging the two lists.
+read_only_memory_patterns: []
diff --git a/src/lib/pricingMethodTotals.ts b/src/lib/pricingMethodTotals.ts
index 378c19e..6e1d5c7 100644
--- a/src/lib/pricingMethodTotals.ts
+++ b/src/lib/pricingMethodTotals.ts
@@ -614,6 +614,8 @@ const resolveScaleRows = (
   return buildDefaultScaleRows(serviceId, consultCategoryFactorMap, majorFactorMap)
 }
 
+// 统一生成某合同下某个咨询服务四种计费方式的存储键。
+// 优先复用 Pinia store 当前约定的 key，避免与旧版 fallback key 脱节。
 export const getPricingMethodDetailDbKeys = (
   contractId: string,
   serviceId: string | number
@@ -697,6 +699,8 @@ const buildDefaultPricingMethodDetailRows = (
   }
 }
 
+// 强制为一组服务重建并落库默认明细行。
+// 这个方法会同时写入 Pinia 内存态和底层 KV 存储，适合“重置为默认值”场景。
 export const persistDefaultPricingMethodDetailRowsForServices = async (params: {
   contractId: string
   serviceIds: Array<string | number>
@@ -729,6 +733,8 @@ export const persistDefaultPricingMethodDetailRowsForServices = async (params: {
   )
 }
 
+// 汇总单个服务的四类计费方式金额。
+// 数据读取顺序是：优先读当前 Pinia 中已加载的计费页数据，缺失时再回退到 KV 存储和合同段默认信息。
 export const getPricingMethodTotalsForService = async (params: {
   contractId: string
   serviceId: string | number
@@ -830,6 +836,8 @@ export const getPricingMethodTotalsForService = async (params: {
   }
 }
 
+// 为一组服务补齐缺失的计费明细行，但不会覆盖已有用户数据。
+// 适合在首次进入计费页或新增服务后做“按需初始化”。
 export const ensurePricingMethodDetailRowsForServices = async (params: {
   contractId: string
   serviceIds: Array<string | number>
@@ -918,6 +926,7 @@ export const ensurePricingMethodDetailRowsForServices = async (params: {
   )
 }
 
+// 并行汇总多个服务的计费结果，返回以 serviceId 为 key 的 Map。
 export const getPricingMethodTotalsForServices = async (params: {
   contractId: string
   serviceIds: Array<string | number>
diff --git a/src/pinia/zxFwPricing.ts b/src/pinia/zxFwPricing.ts
index 4826a0d..d071aa4 100644
--- a/src/pinia/zxFwPricing.ts
+++ b/src/pinia/zxFwPricing.ts
@@ -303,6 +303,8 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return (servicePricingStates.value[contractId]?.[serviceId]?.[method] as ServicePricingMethodState<TRow> | undefined) || null
   }
 
+  // 写入某合同某服务某种计费方式的明细状态。
+  // 默认会同步更新 keysStore，从而触发持久化；syncKeyState=false 时只回填内存态。
   const setServicePricingMethodState = <TRow = unknown>(
     contractIdRaw: string | number,
     serviceIdRaw: string | number,
@@ -337,6 +339,8 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return true
   }
 
+  // 按需加载某个服务的计费方式明细。
+  // 若内存中已有且未强制刷新，直接返回；否则从 keysStore/KV 读取后回填到内存。
   const loadServicePricingMethodState = async <TRow = unknown>(
     contractIdRaw: string | number,
     serviceIdRaw: string | number,
@@ -362,6 +366,7 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return getServicePricingMethodState<TRow>(contractId, serviceId, method)
   }
 
+  // 删除单个服务某种计费方式的状态，并同步清理对应持久化 key。
   const removeServicePricingMethodState = (
     contractIdRaw: string | number,
     serviceIdRaw: string | number,
@@ -377,6 +382,7 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return had
   }
 
+  // 暴露给外部使用的单个计费方式存储键，便于兼容旧逻辑直接读写底层数据。
   const getServicePricingStorageKey = (
     contractIdRaw: string | number,
     serviceIdRaw: string | number,
@@ -388,6 +394,7 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return serviceMethodDbKeyOf(contractId, serviceId, method)
   }
 
+  // 返回某个服务全部计费方式对应的存储键集合，常用于批量清理或导出。
   const getServicePricingStorageKeys = (contractIdRaw: string | number, serviceIdRaw: string | number) => {
     const contractId = toKey(contractIdRaw)
     const serviceId = toServiceKey(serviceIdRaw)
@@ -547,6 +554,7 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
 
   const getKeyVersion = (keyRaw: string | number) => keysStore.getKeyVersion(keyRaw)
 
+  // 对外返回合同咨询服务状态的深拷贝，避免组件直接改写 store 内部引用。
   const getContractState = (contractIdRaw: string | number) => {
     const contractId = toKey(contractIdRaw)
     if (!contractId) return null
@@ -554,6 +562,8 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return data ? cloneState(data) : null
   }
 
+  // 加载合同维度的咨询服务汇总状态。
+  // 同一合同在并发场景下会复用同一个加载任务，避免重复读取 KV。
   const loadContract = async (contractIdRaw: string | number, force = false) => {
     const contractId = toKey(contractIdRaw)
     if (!contractId) return null
@@ -589,6 +599,8 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     }
   }
 
+  // 整体替换某个合同的咨询服务状态。
+  // 入口会先标准化数据并做快照比较，只有真实变化时才递增版本号。
   const setContractState = async (contractIdRaw: string | number, state: ZxFwState) => {
     const contractId = toKey(contractIdRaw)
     if (!contractId) return false
@@ -601,6 +613,8 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return true
   }
 
+  // 只更新某个服务行上的单个汇总字段，适合计费页回写 investScale/landScale/workload/hourly。
+  // 这里不会额外重算其它派生字段，调用方需要自行决定是否联动更新 subtotal/finalFee。
   const updatePricingField = async (params: {
     contractId: string
     serviceId: string | number
@@ -661,6 +675,7 @@ export const useZxFwPricingStore = defineStore('zxFwPricing', () => {
     return hasValid ? round3(sum) : null
   }
 
+  // 清理合同维度的内存态、版本号以及该合同下所有相关持久化键。
   const removeContractData = (contractIdRaw: string | number) => {
     const contractId = toKey(contractIdRaw)
     if (!contractId) return false