Feat/i18n (#92)

* feat: add vue-i18n

* feat: add vue-i18n

* feat: add vue-i18n

* feat: add language class

* add: en templates and configs

* add: en names

* refactor: name gender id and sect id

* feat(i18n): add gettext infrastructure for dynamic text translation (#81)

* feat(i18n): add gettext infrastructure for dynamic text translation

- Add src/i18n/ module with t() translation function
- Add .po/.mo files for zh_CN and en_US locales
- Update LanguageManager to reload translations on language change
- Add comprehensive tests (14 tests, all passing)
- Add implementation spec at docs/specs/i18n-dynamic-text.md

Phase 1 of i18n dynamic text implementation.

* feat(i18n): expand .po files with comprehensive translation entries

Add translation messages for:
- Battle result messages (fatal/non-fatal outcomes)
- Fortune event messages (item discovery, cultivation gains)
- Misfortune event messages (losses, damage, regression)
- Death reason messages
- Item exchange messages (equip, sell, discard)
- Single choice context and option labels
- Common labels (weapon, auxiliary, technique, elixir)

Both zh_CN and en_US locales updated with matching entries.

* test: add .po file integrity tests

* feat: i18n for actions

* feat: i18n for effects

* feat: i18n for gathering

* feat: i18n for classes

* feat: i18n for classes

* feat: i18n for classes

* feat: i18n for classes

* fix bugs

* fix bugs

* fix bugs

* fix bugs

* fix bugs

* fix bugs

* fix bugs

* fix bugs

* update csv

* update world info

* update prompt

* update prompt

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* fix bug

* update

* update

* update

* update

* update

* update

* update

---------

Co-authored-by: Zihao Xu <xzhseh@gmail.com>

static/locales/en-US/templates/long_term_objective.txt

@@ -0,0 +1,25 @@
+You are a decision-maker in a Xianxia world, responsible for setting long-term objectives for cultivation characters, i.e., goals the character wants to achieve within the next 5-10 years.
+
+Current World Information:
+{world_info}
+
+Character Information:
+{avatar_info}
+
+All executable actions for your reference:
+{general_action_infos}
+
+Based on the above information, set a long-term objective for the character that fits their status, personality, and circumstances.
+
+Return in JSON format:
+{{
+    "thinking": "Think about what kind of long-term objective the character would have, but don't overthink it.",
+    "long_term_objective": "Goal content, concise and clear, within 15 words."
+}}
+
+Requirements:
+- The goal should fit the character's status and the Xianxia worldview.
+- Do not fabricate information that has not appeared.
+- It can be grand or specific.
+- Primarily refer to character traits and personality, while considering sect, alignment, interpersonal relationships, historical events, etc.
+- "thinking" should provide a detailed analysis; "long_term_objective" should only return the goal content itself, but don't mention how long it will take to complete.