Config page tasks 1-4: dropdowns, key props, inactive jail full GUI, banaction fix

Task 1: Backend/LogEncoding/DatePattern dropdowns in JailConfigDetail
- Added BACKENDS, LOG_ENCODINGS, DATE_PATTERN_PRESETS constants
- Backend and Log Encoding: <Input readOnly> → <Select> (editable, auto-saves)
- Date Pattern: <Input> → <Combobox freeform> with presets
- Extended JailConfigUpdate model (backend, log_encoding) and service
- Added readOnly prop to JailConfigDetail (all fields, toggles, buttons)
- Extended RegexList with readOnly prop

Task 2: Fix raw action/filter config always blank
- Added key={selectedAction.name} to ActionDetail in ActionsTab
- Added key={selectedFilter.name} to FilterDetail in FiltersTab

Task 3: Inactive jail full GUI same as active jails
- Extended InactiveJail Pydantic model with all config fields
- Added _parse_time_to_seconds helper to config_file_service
- Updated _build_inactive_jail to populate all extended fields
- Extended InactiveJail TypeScript type to match
- Rewrote InactiveJailDetail to reuse JailConfigDetail (readOnly=true)

Task 4: Fix banaction interpolation error when activating jails
- _write_local_override_sync now includes banaction=iptables-multiport
  and banaction_allports=iptables-allports in every .local file

backend/app/models/config.py

@@ -118,6 +118,8 @@ class JailConfigUpdate(BaseModel):
     prefregex: str | None = Field(default=None, description="Prefix regex; None = skip, '' = clear, non-empty = set.")
     date_pattern: str | None = Field(default=None)
     dns_mode: str | None = Field(default=None, description="DNS lookup mode: yes | warn | no | raw.")
+    backend: str | None = Field(default=None, description="Log monitoring backend.")
+    log_encoding: str | None = Field(default=None, description="Log file encoding.")
     enabled: bool | None = Field(default=None)
     bantime_escalation: BantimeEscalationUpdate | None = Field(
         default=None,
@@ -751,6 +753,47 @@ class InactiveJail(BaseModel):
         default=None,
         description="Number of failures before a ban is issued.",
     )
+    # ---- Extended fields for full GUI display ----
+    ban_time_seconds: int = Field(
+        default=600,
+        description="Ban duration in seconds, parsed from bantime string.",
+    )
+    find_time_seconds: int = Field(
+        default=600,
+        description="Failure-counting window in seconds, parsed from findtime string.",
+    )
+    log_encoding: str = Field(
+        default="auto",
+        description="Log encoding, e.g. ``utf-8`` or ``auto``.",
+    )
+    backend: str = Field(
+        default="auto",
+        description="Log-monitoring backend, e.g. ``auto``, ``pyinotify``, ``polling``.",
+    )
+    date_pattern: str | None = Field(
+        default=None,
+        description="Date pattern for log parsing, or None for auto-detect.",
+    )
+    use_dns: str = Field(
+        default="warn",
+        description="DNS resolution mode: ``yes``, ``warn``, ``no``, or ``raw``.",
+    )
+    prefregex: str = Field(
+        default="",
+        description="Prefix regex prepended to every failregex.",
+    )
+    fail_regex: list[str] = Field(
+        default_factory=list,
+        description="List of failure regex patterns.",
+    )
+    ignore_regex: list[str] = Field(
+        default_factory=list,
+        description="List of ignore regex patterns.",
+    )
+    bantime_escalation: BantimeEscalation | None = Field(
+        default=None,
+        description="Ban-time escalation configuration, if enabled.",
+    )
     source_file: str = Field(
         ...,
         description="Absolute path to the config file where this jail is defined.",