feat(fusion_repairs): Phase 1 sales rep + public client portals

Both portals share the existing fusion.repair.intake.service so behaviour
stays identical across all three intake surfaces (backend wizard,
sales rep portal, public client portal).

Sales rep portal
- Hard depends on fusion_authorizer_portal (reuses is_sales_rep_portal
  flag + group_sales_rep_portal scaffolding)
- /my/repair/new  - mobile-friendly intake form with phone-first
  partner search (jsonrpc lookup), category select, third-party flag,
  urgency, photo capture
- /my/repairs     - list of repairs the rep submitted (paginated)
- /my/repair/<id> - read-only detail with status, equipment, scheduled
  visit
- Interaction-class JS (Odoo 19 public.interactions), safe DOM construction
- Mobile SCSS with 44px tap targets, sticky CTA on small screens
- Record rule scopes portal users to repairs where
  x_fc_intake_user_id = user.id

Public client portal
- auth='public' - voicemail-ready /repair URL
- /repair         - landing page with 911 disclaimer and Start CTA
- /repair/new     - single-page form: contact, equipment, issue, urgency,
  optional photos. QR pre-fill via ?sn=<serial>
- /repair/submit  - CSRF + honeypot + per-IP rate limit (configurable);
  finds or creates partner; calls intake service with sudo
- /repair/thanks  - confirmation with reference number
- /repair/lookup_phone (jsonrpc) - safe partner match returning ONLY
  masked name (first + last initial) + city (no other PII leakage)

Security fix: technician record rule on repair.order now uses STORED
fields (technician_id + additional_technician_ids) instead of the
non-stored all_technician_ids compute, which was failing SQL generation.

Verified end-to-end on local westin-v19:
- Sales rep create via intake service with the rep user context creates
  the repair with x_fc_intake_source='sales_rep_portal' and proper
  activities
- /repair/submit posts urlencoded data -> creates partner + repair
  ('BR-WA/RO/00010', source='client_portal', urgency='urgent') ->
  redirects to /repair/thanks with the reference

Co-authored-by: Cursor <cursoragent@cursor.com>

fusion_repairs/static/src/js/portal_repair_intake.js

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+/** @odoo-module **/
+// Sales rep portal - new service call form interactions.
+// Uses Odoo 19 public Interaction class per project frontend rules
+// (NOT IIFE / DOMContentLoaded). Uses only safe DOM construction
+// (textContent + createElement) - no innerHTML, no XSS risk.
+
+import { Interaction } from "@web/public/interaction";
+import { registry } from "@web/core/registry";
+import { rpc } from "@web/core/network/rpc";
+
+export class SalesRepRepairIntake extends Interaction {
+    static selector = ".o_fusion_repairs_portal";
+
+    dynamicContent = {
+        "#partner_search": {
+            "t-on-input": this._onPartnerSearchInput,
+        },
+    };
+
+    setup() {
+        this._partnerSearchTimer = null;
+    }
+
+    _onPartnerSearchInput(ev) {
+        const query = (ev.target.value || "").trim();
+        if (this._partnerSearchTimer) {
+            clearTimeout(this._partnerSearchTimer);
+        }
+        if (query.length < 3) {
+            this._renderMatches([]);
+            return;
+        }
+        this._partnerSearchTimer = setTimeout(async () => {
+            try {
+                const result = await rpc("/my/repair/lookup_partner", { query });
+                this._renderMatches(result.matches || []);
+            } catch (e) {
+                this._renderMatches([]);
+            }
+        }, 250);
+    }
+
+    _renderMatches(matches) {
+        const list = document.getElementById("partner_matches");
+        if (!list) {
+            return;
+        }
+        while (list.firstChild) {
+            list.removeChild(list.firstChild);
+        }
+        for (const m of matches) {
+            list.appendChild(this._buildMatchItem(m));
+        }
+    }
+
+    _buildMatchItem(m) {
+        const item = document.createElement("button");
+        item.type = "button";
+        item.className = "list-group-item list-group-item-action text-start";
+
+        const nameStrong = document.createElement("strong");
+        nameStrong.textContent = m.name || "";
+        item.appendChild(nameStrong);
+
+        if (m.phone) {
+            const phone = document.createElement("span");
+            phone.className = "text-muted ms-2";
+            phone.textContent = m.phone;
+            item.appendChild(phone);
+        }
+
+        if (m.repair_count) {
+            const badge = document.createElement("span");
+            badge.className = "badge bg-secondary ms-2";
+            badge.textContent = `${m.repair_count} repair(s)`;
+            item.appendChild(badge);
+        }
+
+        if (m.street) {
+            const addr = document.createElement("div");
+            addr.className = "small text-muted";
+            addr.textContent = [m.street, m.city].filter(Boolean).join(", ");
+            item.appendChild(addr);
+        }
+
+        item.addEventListener("click", () => this._selectPartner(m));
+        return item;
+    }
+
+    _selectPartner(m) {
+        document.getElementById("partner_id_input").value = m.id;
+        document.getElementById("partner_selected_name").textContent =
+            m.name + (m.phone ? ` (${m.phone})` : "");
+        document
+            .getElementById("partner_selected")
+            .classList.remove("d-none");
+        const list = document.getElementById("partner_matches");
+        while (list.firstChild) {
+            list.removeChild(list.firstChild);
+        }
+        document.getElementById("partner_search").value = m.name;
+    }
+}
+
+registry
+    .category("public.interactions")
+    .add("fusion_repairs.sales_rep_intake", SalesRepRepairIntake);

fusion_repairs/static/src/scss/portal_client_repair.scss

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+/* Public client portal - mobile-first.
+ * Follows project SCSS rules: no hardcoded theme colours, large tap targets,
+ * adapts to website light/dark theme automatically.
+ */
+
+.o_fusion_repairs_client {
+    .form-control,
+    .form-select,
+    .btn {
+        min-height: 44px;
+    }
+
+    .btn-lg {
+        min-height: 56px;
+        font-size: 1.125rem;
+    }
+
+    .card {
+        border-radius: 0.75rem;
+    }
+
+    h1.display-5,
+    h2 {
+        line-height: 1.2;
+    }
+
+    @media (max-width: 575px) {
+        section {
+            padding-top: 1.5rem !important;
+            padding-bottom: 1.5rem !important;
+        }
+        .card-footer {
+            position: sticky;
+            bottom: 0;
+            background: inherit;
+            z-index: 2;
+        }
+    }
+}

fusion_repairs/static/src/scss/portal_repair_mobile.scss

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+/* Sales rep portal - mobile-first additions.
+ * Follows project CLAUDE.md rules:
+ *  - Tap targets >=44px
+ *  - No hardcoded theme colours
+ *  - Cards float on a slightly grayer page background
+ */
+
+.o_fusion_repairs_portal {
+    .card {
+        border-radius: 0.5rem;
+    }
+
+    .form-control,
+    .form-select,
+    .btn {
+        min-height: 44px;
+    }
+
+    .btn-lg {
+        min-height: 52px;
+    }
+
+    #partner_matches {
+        .list-group-item {
+            padding: 0.75rem 1rem;
+            cursor: pointer;
+        }
+    }
+
+    /* Sticky bottom CTA on small screens for the submit form. */
+    @media (max-width: 575px) {
+        .card-footer {
+            position: sticky;
+            bottom: 0;
+            background: inherit;
+            z-index: 2;
+        }
+    }
+}